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Technical support / Reading a string using MODBUS RTU
« on: February 24, 2023, 07:43:35 AM »
I have a third party device connected to a FX series PLC that uses the MODBUS RTU protical. The developer knows how to read the values of the Inputs, Outputs, Internal Relays as well as the DM values. However is there any way they can read what is stored in say A$?
The A$ will show a 20 character text message such as A$ = "OPEN EMERGENCY STOP " Can anyone tell me how they can read the contents of the A$ using MODBUS RTU commands?
The A$ will show a 20 character text message such as A$ = "OPEN EMERGENCY STOP " Can anyone tell me how they can read the contents of the A$ using MODBUS RTU commands?