HexMan Posted October 17, 2019 Report Share Posted October 17, 2019 Hello to all. I am working on a project in which I will only get PLC data to an external control system, we will do it in MODBUS. Everything works correctly, but I find two problems: The addressing mapping is 1: 1 accessible from MODBUS, so they could read any record. The same is reproduced in writing, so that accidentally (or not) they could overwrite important values of my program. Could we limit the reading to a certain number of records? Could we limit the writing? Thanks in advance! Quote Link to comment Share on other sites More sharing options...
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