Communication with PLC SIEMENS S7-200 over MODBUS

Compatibility (hardware, devices and OS)
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tlambin
Posts: 4
Joined: Tuesday 16 May 2017 22:12
Target OS: -
Domoticz version:
Contact:

Communication with PLC SIEMENS S7-200 over MODBUS

Post by tlambin » Sunday 04 June 2017 21:20

Hi, I want my Domoticz raspberry pi to work as a MODBUS MASTER.

This way I can send/receive commands to my PLC which works as a MODBUS SLAVE. The plc does not have any network cards, but the CPU 224 has a com0 port.

How should I connect the cable to my raspberry-pi?

Do I need additional hardware?

Which settings do I need to make in domiticz?

Have you got other tips/tricks?

Please advice

salvacalatayud
Posts: 6
Joined: Monday 26 June 2017 21:16
Target OS: Raspberry Pi
Domoticz version: 3.8072
Location: Spain
Contact:

Re: Communication with PLC SIEMENS S7-200 over MODBUS

Post by salvacalatayud » Thursday 13 July 2017 12:36

+1

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