I have a Magelis HMISTU HMI display connected to a Wago 750-881 coupler using Modbus TCP. I wish to display the values of a number of variables within the PFC but the display driver will only accept register values in the range 30001+ whereas the variables are located in the Wago coupler at address 256+. I have tried using IEC61131 addressing but this does not appear to help. Is there a way to perform some kind of conversion or are the two items simply incompatible?
Thanks,
Tony
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Its OK, I just realised that register address 30001 on the display is in fact equivalent to Modbus address zero on the Wago so I just need to add 30001 to each Modbus address in the Wago to access my variables.
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
I have a Magelis HMISTU HMI display connected to a Wago 750-881 coupler using Modbus TCP. I wish to display the values of a number of variables within the PFC but the display driver will only accept register values in the range 30001+ whereas the variables are located in the Wago coupler at address 256+. I have tried using IEC61131 addressing but this does not appear to help. Is there a way to perform some kind of conversion or are the two items simply incompatible?
Thanks,
Tony
Its OK, I just realised that register address 30001 on the display is in fact equivalent to Modbus address zero on the Wago so I just need to add 30001 to each Modbus address in the Wago to access my variables.