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I am using a Siemens S7-300 Modbus Slave with a 3rd Party Modbus Master. Every 2-4 hours the master receives a packet with incorrect information. The packets are always returned correctly it is just the info inside that seems to be wrong. Can anyone suggest software that will provide a Modbus master device in my laptop, so that I can record the status of the bits/registers from the Siemens S7-300 over say, a 12 hour period?
Thanks.
Thanks.