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About juanpancho88

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  1. Thanks for your advice Flex727. I break code in simpler rungs and check every socket parameter and it works! I'm reading holding register from my software through TCP/IP Modbus. Best regards! Juan
  2. Hi, I'm trying to do almost same thing, but only one PLC (Vision 1210). It is Master when comunicating with a rpm driver trough serial. And it is Slave when I try to communicate from software in my laptop trough ethernet (software creates a master instance). PLC works perfect when controlling rpm driver. From laptop to PLC the connection is established (I open a tcp/ip connection using IP and port 502 of PLC and it says "OK" without errors), but when try of read holding registers nothing happens. I know there are two sources of error: 1) software is not asking properly for the registers.
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