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2026-11-11T13:40:45Z
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2023年5月5日 (五) 08:40 LYS23
2023-05-05T08:40:04Z
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">←上一版本</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">2023年5月5日 (五) 08:40的版本</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1">第1行：</td>
<td colspan="2" class="diff-lineno">第1行：</td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== 产品名称 ==</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== 产品名称 ==</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"></del></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Modbus RTU 双路继电器模块 RS485/TTL UART 2路输入 2路输出</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Modbus RTU 双路继电器模块 RS485/TTL UART 2路输入 2路输出</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== 概述 ==</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== 概述 ==</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">艾尔赛双路Modbus继电器模块搭载成熟稳定的8位MCU和RS485电平通讯芯片。采用标准MODBUS </del>RTU格式的RS485通讯协议，可以实现2路输入信号检测、2路继电器输出，可用于数字量检测或者功率控制场合。</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">艾尔赛双路Modbus继电器模块搭载成熟稳定的8位MCU和RS485电平通讯芯片。 <br></ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">采用标准MODBUS </ins>RTU格式的RS485通讯协议，可以实现2路输入信号检测、2路继电器输出，可用于数字量检测或者功率控制场合。 <ins style="font-weight: bold; text-decoration: none;"><br></ins></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== 功能 ==</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== 功能 ==</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>* 板载成熟稳定的8bit <del style="font-weight: bold; text-decoration: none;">MCU和MAX485电平转换芯片；</del><br></div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>* 板载成熟稳定的8bit <ins style="font-weight: bold; text-decoration: none;">MCU和MAX485电平转换芯片</ins><br></div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> </div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>* 通讯协议：支持标准Modbus <ins style="font-weight: bold; text-decoration: none;">RTU协议</ins><br></div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>* 通讯协议：支持标准Modbus <del style="font-weight: bold; text-decoration: none;">RTU协议； </del><br></div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>* <ins style="font-weight: bold; text-decoration: none;">通讯接口支持RS485</ins>/TTL <ins style="font-weight: bold; text-decoration: none;">UART接口</ins><br></div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> </div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>* 通讯波特率：4800/9600/<ins style="font-weight: bold; text-decoration: none;">19200，默认9600bps，支持掉电保存</ins><br></div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>* <del style="font-weight: bold; text-decoration: none;">通讯接口：支持RS485</del>/TTL <del style="font-weight: bold; text-decoration: none;">UART接口；</del><br></div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>* 光耦输入信号范围：DC3.3-<ins style="font-weight: bold; text-decoration: none;">24V（此输入不可用于继电器控制）</ins><br></div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> </div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>* 输出信号：继电器开关信号，支持手动、闪闭、闪断模式，闪闭/闪断的延时基数为0.1S，最大可设闪闭/闪断时间为0xFFFF*0.1S=6553.<ins style="font-weight: bold; text-decoration: none;">5S</ins><br></div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>* 通讯波特率：4800/9600/<del style="font-weight: bold; text-decoration: none;">19200，默认9600bps，支持掉电保存；</del><br></div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>* 设备地址：范围1-255, 默认255,<ins style="font-weight: bold; text-decoration: none;">支持掉电保存</ins><br></div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> </div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>* 波特率、输入信号、继电器状态、设备地址可使用软件/<ins style="font-weight: bold; text-decoration: none;">指令进行读取</ins><br></div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>* 光耦输入信号范围：DC3.3-<del style="font-weight: bold; text-decoration: none;">24V（此输入不可用于继电器控制）；</del><br></div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>* 板载2路5V,10A/250V AC 10A/30V <ins style="font-weight: bold; text-decoration: none;">DC继电器，可连续吸合10万次，具有二极管泻流保护，响应时间短</ins><br></div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> </div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>* <ins style="font-weight: bold; text-decoration: none;">板载继电器开关指示灯</ins><br></div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>* 输出信号：继电器开关信号，支持手动、闪闭、闪断模式，闪闭/闪断的延时基数为0.1S，最大可设闪闭/闪断时间为0xFFFF*0.1S=6553.<del style="font-weight: bold; text-decoration: none;">5S；</del><br></div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>* 供电电压：DC7-<ins style="font-weight: bold; text-decoration: none;">24V，带输入防反接保护</ins><br></div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"> </del></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>* 设备地址：范围1-255, 默认255,<del style="font-weight: bold; text-decoration: none;">支持掉电保存；</del><br></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> </div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>* 波特率、输入信号、继电器状态、设备地址可使用软件/<del style="font-weight: bold; text-decoration: none;">指令进行读取；</del><br></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"> </del></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>* 板载2路5V,10A/250V AC 10A/30V <del style="font-weight: bold; text-decoration: none;">DC继电器，可连续吸合10万次，具有二极管泻流保护，响应时间短；</del><br></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> </div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>* <del style="font-weight: bold; text-decoration: none;">板载继电器开关指示灯；</del><br></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> </div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>* 供电电压：DC7-<del style="font-weight: bold; text-decoration: none;">24V，带输入防反接保护；</del><br></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> </div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
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<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l41">第41行：</td>
<td colspan="2" class="diff-lineno">第30行：</td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>2、接口介绍<br></div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>2、接口介绍<br></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Image:LC-NW-1-2 2.png]]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Image:LC-NW-1-2 2.png]]</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"></del></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>1、VCC，GND：DC7-24V电源输入；<br></div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>1、VCC，GND：DC7-24V电源输入；<br></div></td></tr>
<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l49">第49行：</td>
<td colspan="2" class="diff-lineno">第37行：</td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>GND_IN：公共端负极<br></div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>GND_IN：公共端负极<br></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>3、A+，B-：RS485通讯接口，A+，B-分别接外部控制端的A+，B-<del style="font-weight: bold; text-decoration: none;">；</del><br></div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>3、A+，B-：RS485通讯接口，A+，B-分别接外部控制端的A+，B-<br></div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>4、GND，RXD，TXD：TTL电平UART通讯接口，GND，RXD，TXD分别接外部控制端的GND，TXD，RXD，支持连接3.3V/5V <del style="font-weight: bold; text-decoration: none;">外部TTL串口；</del><br></div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>4、GND，RXD，TXD：TTL电平UART通讯接口，GND，RXD，TXD分别接外部控制端的GND，TXD，RXD，支持连接3.3V/5V <ins style="font-weight: bold; text-decoration: none;">外部TTL串口</ins><br></div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">5、RS485和TTL串口选择，当使用RS485通信时，DI接TXD、RO接RXD；使用TTL通信时DI和RO都接NC端。</del><br></div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">5、RS485和TTL串口选择，当使用RS485通信时，DI接TXD、RO接RXD；使用TTL通信时DI和RO都接NC端</ins><br></div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">6、2路独立继电器开关信号输出：</del><br></div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">6、2路独立继电器开关信号输出</ins><br></div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">NC，：常闭端，继电器吸合前与COM短接，吸合后悬空；</del><br></div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">NC：常闭端，继电器吸合前与COM短接，吸合后悬空</ins><br></div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">COM：公共端；</del><br></div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">COM：公共端</ins><br></div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">NO：常开端，继电器吸合前悬空，吸合后与COM短接。</del><br></div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">NO：常开端，继电器吸合前悬空，吸合后与COM短接</ins><br></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>3、Modbus RTU指令简介<br></div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>3、Modbus RTU指令简介<br></div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Modbus设备通过接收来自外部控制端（如：上位机/MCU）的Modbus <del style="font-weight: bold; text-decoration: none;">RTU指令来执行相关操作，一帧指令一般由设备地址、功能码、寄存器地址、寄存器数据、校验码组成，帧长度和功能码有关。一般每帧数据的首字节为设备地址，可设置范围为1</del>-255，默认255（即0xFF），最后2字节为CRC校验码。<br></div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Modbus设备通过接收来自外部控制端（如：上位机/MCU）的Modbus <ins style="font-weight: bold; text-decoration: none;">RTU指令来执行相关操作，一帧指令一般由设备地址、功能码、寄存器地址、寄存器数据、校验码组成，<br></ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">帧长度和功能码有关。一般每帧数据的首字节为设备地址，可设置范围为1</ins>-255，默认255（即0xFF），最后2字节为CRC校验码。<br></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>假设设备地址为255，则常用的Modbus RTU指令如下：<br></div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>假设设备地址为255，则常用的Modbus RTU指令如下：<br></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l145">第145行：</td>
<td colspan="2" class="diff-lineno">第134行：</td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== 硬件连接 ==</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== 硬件连接 ==</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Modbus 继电器模块可经由RS485/TTL UART接口接收来自上位机/MCU的Modbus <del style="font-weight: bold; text-decoration: none;">RTU指令来执行相关操作。下面以使用上位机软件通过RS485接口来打开继电器1（手动模式）为例，假设设备地址为255，波特率为9600，则使用步骤如下：</del><br></div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Modbus 继电器模块可经由RS485/TTL UART接口接收来自上位机/MCU的Modbus <ins style="font-weight: bold; text-decoration: none;">RTU指令来执行相关操作。<br></ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">下面以使用上位机软件通过RS485接口来打开继电器1（手动模式）为例，假设设备地址为255，波特率为9600，则使用步骤如下：</ins><br></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>1、VCC，GND分别接电源正负极；<br></div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>1、VCC，GND分别接电源正负极；<br></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>2、A+，B-分别USB转RS485模块输出端的A+和B- ；<br></div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>2、A+，B-分别USB转RS485模块输出端的A+和B- ；<br></div></td></tr>
<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l155">第155行：</td>
<td colspan="2" class="diff-lineno">第145行：</td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>如何生成校验码<br></div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>如何生成校验码<br></div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Modbus <del style="font-weight: bold; text-decoration: none;">RTU指令通过现成的上位机软件（如：LC_Modbus_RTU工具）来发送时，CRC校验码是自动生成的，如果想使用串口调试软件（如SSCOM）来测试Modbus继电器模块时就需要手动生成CRC校验码放在发送帧的末尾，比如打开第1路继电器（手动模式）：</del><br></div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Modbus <ins style="font-weight: bold; text-decoration: none;">RTU指令通过现成的上位机软件（如：LC_Modbus_RTU工具）来发送时，CRC校验码是自动生成的，如果想使用串口调试软件（如SSCOM）来测试Modbus继电器模块时<br></ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">就需要手动生成CRC校验码放在发送帧的末尾，比如打开第1路继电器（手动模式）：</ins><br></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>1、打开/关闭继电器（手动模式）的发送帧组成为：<br></div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>1、打开/关闭继电器（手动模式）的发送帧组成为：<br></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>设备地址（1Byte）+功能码（1Byte）+寄存器地址（2Byte）+寄存器数据（2Byte）+CRC校验码（2Byte）<br></div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>设备地址（1Byte）+功能码（1Byte）+寄存器地址（2Byte）+寄存器数据（2Byte）+CRC校验码（2Byte）<br></div></td></tr>
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LYS23
http://wiki.lcmaker.com/index.php?title=LC-NW-1-2&diff=1686&oldid=prev
2023年4月12日 (三) 02:02 LYS23
2023-04-12T02:02:31Z
<p></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">←上一版本</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">2023年4月12日 (三) 02:02的版本</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l160">第160行：</td>
<td colspan="2" class="diff-lineno">第160行：</td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>2、假设设备地址为0xFF, 则发送帧的前6个字节为：<br></div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>2、假设设备地址为0xFF, 则发送帧的前6个字节为：<br></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>FF 05 00 00 FF 00<br></div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>FF 05 00 00 FF 00<br></div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">3，打开LC_Modbus_RTU软件自带的CRC计算工具</del><br></div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">3、打开LC_Modbus_RTU软件自带的CRC计算工具</ins><br></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Image:LC-NW-1-1 5.png]]<br></div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Image:LC-NW-1-1 5.png]]<br></div></td></tr>
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LYS23
http://wiki.lcmaker.com/index.php?title=LC-NW-1-2&diff=1685&oldid=prev
LYS23：创建页面，内容为“== 产品名称 == Modbus RTU 双路继电器模块 RS485/TTL UART 2路输入 2路输出 == 概述 == 艾尔赛双路Modbus继电器模块搭载成熟稳定的8…”
2023-04-12T02:01:43Z
<p>创建页面，内容为“== 产品名称 == Modbus RTU 双路继电器模块 RS485/TTL UART 2路输入 2路输出 == 概述 == 艾尔赛双路Modbus继电器模块搭载成熟稳定的8…”</p>
<p><b>新页面</b></p><div>== 产品名称 ==<br />
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Modbus RTU 双路继电器模块 RS485/TTL UART 2路输入 2路输出<br />
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== 概述 ==<br />
艾尔赛双路Modbus继电器模块搭载成熟稳定的8位MCU和RS485电平通讯芯片。采用标准MODBUS RTU格式的RS485通讯协议，可以实现2路输入信号检测、2路继电器输出，可用于数字量检测或者功率控制场合。<br />
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== 功能 ==<br />
* 板载成熟稳定的8bit MCU和MAX485电平转换芯片；<br><br />
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* 通讯协议：支持标准Modbus RTU协议； <br><br />
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* 通讯接口：支持RS485/TTL UART接口；<br><br />
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* 通讯波特率：4800/9600/19200，默认9600bps，支持掉电保存；<br><br />
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* 光耦输入信号范围：DC3.3-24V（此输入不可用于继电器控制）；<br><br />
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* 输出信号：继电器开关信号，支持手动、闪闭、闪断模式，闪闭/闪断的延时基数为0.1S，最大可设闪闭/闪断时间为0xFFFF*0.1S=6553.5S；<br><br />
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* 设备地址：范围1-255, 默认255,支持掉电保存；<br><br />
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* 波特率、输入信号、继电器状态、设备地址可使用软件/指令进行读取；<br><br />
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* 板载2路5V,10A/250V AC 10A/30V DC继电器，可连续吸合10万次，具有二极管泻流保护，响应时间短；<br><br />
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* 板载继电器开关指示灯；<br><br />
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* 供电电压：DC7-24V，带输入防反接保护；<br><br />
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== 介绍说明 ==<br />
1、板子尺寸<br><br />
[[Image:LC-NW-1-2 1.png]]<br />
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2、接口介绍<br><br />
[[Image:LC-NW-1-2 2.png]]<br />
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1、VCC，GND：DC7-24V电源输入；<br><br />
2，DC3.3-24V光耦信号输入：<br><br />
IN1： 通道1正极<br><br />
IN2： 通道2正极<br><br />
GND_IN：公共端负极<br><br />
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3、A+，B-：RS485通讯接口，A+，B-分别接外部控制端的A+，B-；<br><br />
4、GND，RXD，TXD：TTL电平UART通讯接口，GND，RXD，TXD分别接外部控制端的GND，TXD，RXD，支持连接3.3V/5V 外部TTL串口；<br><br />
5、RS485和TTL串口选择，当使用RS485通信时，DI接TXD、RO接RXD；使用TTL通信时DI和RO都接NC端。<br><br />
6、2路独立继电器开关信号输出：<br><br />
NC，：常闭端，继电器吸合前与COM短接，吸合后悬空；<br><br />
COM：公共端；<br><br />
NO：常开端，继电器吸合前悬空，吸合后与COM短接。<br><br />
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3、Modbus RTU指令简介<br><br />
Modbus设备通过接收来自外部控制端（如：上位机/MCU）的Modbus RTU指令来执行相关操作，一帧指令一般由设备地址、功能码、寄存器地址、寄存器数据、校验码组成，帧长度和功能码有关。一般每帧数据的首字节为设备地址，可设置范围为1-255，默认255（即0xFF），最后2字节为CRC校验码。<br><br />
假设设备地址为255，则常用的Modbus RTU指令如下：<br><br />
<br />
1、打开1号继电器（手动模式）<br><br />
发送： FF 05 00 00 FF 00 99 E4<br><br />
原样返回：FF 05 00 00 FF 00 99 E4<br><br />
备注：（1）发送帧的第3--4个字节代表继电器地址，继电器1--继电器8的地址分别为0x0000,0x0001,0x0002,0x0003,0x0004,0x0005,0x0006,0x0007<br><br />
（2）发送帧的第5--6个字节代表数据，0xFF00代表打开继电器，0x0000代表关闭继电器<br><br />
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2、关闭1号继电器（手动模式）<br><br />
发送： FF 05 00 00 00 00 D8 14 <br><br />
原样返回：FF 05 00 00 00 00 D8 14 <br><br />
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3、打开2号继电器（手动模式）<br><br />
发送： FF 05 00 01 FF 00 C8 24 <br><br />
原样返回：FF 05 00 01 FF 00 C8 24 <br><br />
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4、关闭2号继电器（手动模式）<br><br />
发送： FF 05 00 01 00 00 89 D4 <br><br />
原样返回：FF 05 00 01 00 00 89 D4<br><br />
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5、打开所有继电器<br><br />
发送：FF 0F 00 00 00 08 01 FF 30 1D <br><br />
返回：FF 0F 00 00 00 08 41 D3<br><br />
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6、关闭所有继电器<br><br />
发送：FF 0F 00 00 00 08 01 00 70 5D <br><br />
返回：FF 0F 00 00 00 08 41 D3<br><br />
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7、设置设备地址为1<br><br />
发送： 00 10 00 00 00 01 02 00 01 6A 00 <br><br />
原样返回：00 10 00 00 00 01 02 00 01 6A 00<br><br />
备注：发送帧的第9个字节0x01为写入的设备地址 <br><br />
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8、设置设备地址为255<br><br />
发送： 00 10 00 00 00 01 02 00 FF EB 80 <br><br />
原样返回：00 10 00 00 00 01 02 00 FF EB 80<br><br />
备注：发送帧的第9个字节0xFF为写入的设备地址<br><br />
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9、读取设备地址 <br><br />
发送： 00 03 00 00 00 01 85 DB <br><br />
返回： 00 03 02 00 FF C5 C4 <br><br />
备注：返回帧的第5个字节0xFF为读取到的设备地址<br><br />
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10、读取继电器状态 <br><br />
发送： FF 01 00 00 00 08 28 12 <br><br />
返回： FF 01 01 01 A1 A0 <br><br />
备注：返回帧的第4个字节0x01的Bit0--Bit7分别代表继电器1--继电器8，0为关闭，1为打开<br><br />
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11、读取光耦输入状态<br> <br />
发送： FF 02 00 00 00 08 6C 12 <br><br />
返回： FF 02 01 01 51 A0 <br><br />
备注：返回帧的第4个字节0x01的IN1--IN8分别代表光耦1--光耦8输入信号，0代表低电平，1代表高电平<br><br />
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12、设置波特率为4800 <br><br />
发送： FF 10 03 E9 00 01 02 00 02 4A 0C <br><br />
返回： FF 10 03 E9 00 01 C5 A7 <br><br />
备注：发送帧的第9个字节为波特率设置值，0x02, 0x03, x04分别代表4800, 9600, 19200<br><br />
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13、设置波特率为9600<br><br />
发送： FF 10 03 E9 00 01 02 00 03 8B CC <br><br />
返回： FF 10 03 E9 00 01 C5 A7<br><br />
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14、设置波特率为19200<br><br />
发送： FF 10 03 E9 00 01 02 00 04 CA 0E <br><br />
返回： FF 10 03 E9 00 01 C5 A7<br><br />
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15、读取波特率<br><br />
发送： FF 03 03 E8 00 01 11 A4 <br><br />
返回： FF 03 02 00 04 90 53<br><br />
备注：返回帧的第5个字节代表读取到的波特率，0x02, 0x03, x04分别代表4800, 9600, 19200<br><br />
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16、打开1号继电器（闪闭模式2S）<br><br />
发送： FF 10 00 03 00 02 04 00 04 00 14 C5 9F <br><br />
返回： FF 10 00 03 00 02 A4 16<br><br />
备注：（1）发送帧的第3--4个字节代表继电器地址，继电器1--继电器8的地址分别为0x0003,0x0008,0x000D,0x0012,0x0017,0x001C,0x0021,0x0026<br><br />
（2）发送帧的第10--11个字节代表延时设置值，延时基数为0.1S，故延时时间为0x0014*0.1=20*0.1S=2S，继电器打开2S后自动关闭<br><br />
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17、关闭1号继电器（闪断模式3S）<br><br />
发送： FF 10 00 03 00 02 04 00 02 00 1E A5 99 <br><br />
返回： FF 10 00 03 00 02 A4 16<br><br />
备注：（1）发送帧的第3--4个字节代表继电器地址，继电器1--继电器8的地址分别为0x0003,0x0008,0x000D,0x0012,0x0017,0x001C,0x0021,0x0026<br><br />
（2）发送帧的第10--11个字节代表延时设置值，延时基数为0.1S，故延时时间为0x001E*0.1=30*0.1S=3S，继电器关闭3S后自动打开<br><br />
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== 硬件连接 ==<br />
Modbus 继电器模块可经由RS485/TTL UART接口接收来自上位机/MCU的Modbus RTU指令来执行相关操作。下面以使用上位机软件通过RS485接口来打开继电器1（手动模式）为例，假设设备地址为255，波特率为9600，则使用步骤如下：<br><br />
1、VCC，GND分别接电源正负极；<br><br />
2、A+，B-分别USB转RS485模块输出端的A+和B- ；<br><br />
3、打开上位机软件“LC_Modbus_RTU”，选择正确的端口号，波特率选择9600，地址设为255，点击“打开”串口；<br><br />
4、再勾选继电器区域的“继电器1”即可打开继电器1，同时继电器1的指示灯点亮。如下图：<br><br />
[[Image:LC-NW-1-2 3.png]]<br><br />
<br />
[[Image:LC-NW-1-1 4.png]]<br><br />
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如何生成校验码<br><br />
Modbus RTU指令通过现成的上位机软件（如：LC_Modbus_RTU工具）来发送时，CRC校验码是自动生成的，如果想使用串口调试软件（如SSCOM）来测试Modbus继电器模块时就需要手动生成CRC校验码放在发送帧的末尾，比如打开第1路继电器（手动模式）：<br><br />
1、打开/关闭继电器（手动模式）的发送帧组成为：<br><br />
设备地址（1Byte）+功能码（1Byte）+寄存器地址（2Byte）+寄存器数据（2Byte）+CRC校验码（2Byte）<br><br />
2、假设设备地址为0xFF, 则发送帧的前6个字节为：<br><br />
FF 05 00 00 FF 00<br><br />
3，打开LC_Modbus_RTU软件自带的CRC计算工具<br><br />
[[Image:LC-NW-1-1 5.png]]<br><br />
<br />
<br />
4、将要计算CRC校验码的数据复制进去，然后点击“计算”，就可以得到校验码为 99 E4，以及完整的发送帧：FF 05 00 00 FF 00 99 E4<br><br />
[[Image:LC-NW-1-1 6.png]]<br><br />
<br />
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5、将该发送帧通过串口调试软件SSCOM V5.13.1发送到Modbus继电器模块即可打开第一路继电器（手动模式），如下：<br> <br />
[[Image:LC-NW-1-1 7.png]]<br></div>
LYS23