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  • 1. BC8100如何和modscan通信?
  • 2. 请问Modbus RTU 通讯协议在哪个功能库里?
  • 3. 请问下,我用EL6021的modbus通讯正常,换成EL6022就通讯不上,为什么?需要设置什么吗?
  • 4. EL6021做Modbus RTU通讯,请问读取一个开关量数据的pMemoryAddr、cbLength、Quantity怎么填写?
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TS6255 TwinCAT 2 Modbus RTU常见问答

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2. 请问Modbus RTU 通讯协议在哪个功能库里?

叫ModbusRTU.lib。

https://infosys.beckhoff.com/content/1033/tf6255_tc3_modbus_rtu/186519307.html?id=5842524074925149975


https://infosys.beckhoff.com/content/1033/tcplclibmodbusrtu/9007199710009867.html?id=3545230319628477492


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