What is the Syntax of the IN Parameter of the ADDM block used by M340 PLCs when communicating over Modbus?

For addressing a device using the Modbus protocol, the IN parameter takes the form 'r.m.c.e', where:

• r — rack number
• m — module position
• c — channel number of the Modbus port (0)
• e — Modbus slave number (equipment), range 1 to 247