8/25/2020 1:35 PM | |
Posts: 2 Rating: (0) |
helo everyone I am using s7 200 smart plc (ST20) with programming software step 7 microwin smart, analog module card mint-plus whose value is coming through rs485 to the plc st20 and also using proface hmi GC4408w model with software GPPRO EX 4.09 all thing comunication is done with wincc flexible 2008 sp3 scada detais hmi as a master plc slave id 2 mint plus analog module card slave id 1 modbus 9600 boadrate data lenth 8 parity none stop bit 1 I want to know how to mapping modbus memory bit in in holding register as q0.0 00001 q0.1 00002 q0.2 00003....... i0.0 10001 i0.1 10002 i0.2 10003..... m0.0 ??? m0.1 ??? m0.2 ???........ and how to configuration multi master and multi slave in st20 plc i mean want to take plc data and analog data of mint plus module shown into hmi please anyone replay ------------------------------------------------------------------------------------------ |
Last edited by: Jen_Moderator at: 08/25/2020 14:10:01New subject after splitting |
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8/25/2020 2:19 PM | |
Joined: 9/27/2006 Last visit: 9/22/2024 Posts: 12282 Rating: (2685) |
Hello udaykant; You should find modt of your answers in the S7-200 Smart system manual, https://support.industry.siemens.com/cs/in/en/view/109745610 and in this application note on Modbus comms: The screenshot below (taken from the documentation of the application note, shows how you determine (configure) the range of I/Os (digital and analog) you will be sending to a Modbus master, when using the S7-200 SMART as a Modbus slave. Hope this helps, Daniel Chartier |
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