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