Parker Hannifin
home | products | how to buy | support & downloads | literature | search

Click Here to go to new EM&D Knowledge Base (FAQ) site


PAC with Modbus: What addresses for tags?

Modbus slave outputs (read only) automatically start at address 30001.

Modbus slave inputs (read/write) automatically start at address 40001.

Bit can then be .0 through .15

The above Modbus Master is a Parker Interact Xpress HMI and shows the Interact Xpress Manager tag setup. The PAC is the Modbus slave.

In the PAC software:

Note the memory address  (ie %IE23) offset can be ignored. These are automatically mapped to 30001 and 40001 per Modbus.

 

keywords: variables, ModbusTCP

 

4/16/14jh