Adding MODBUS RTU slaves

Regular MODBUS RTU addressing

When using Serial Link, MODBUS slaves are identified by a unique number, whose value is comprised between 1 and 247.

New MODBUS RTU slaves can be created by using one of the following patterns:

1
Create just one slave with address 1.
5-10
Create all six slaves with addresses ranging from 5 to 10 included.
6, 12
Create two slaves, the first with address 6 and the second with address 12.
5, 8-10, 12
Create slaves with addresses 5, 8, 9, 10 and 12.

Note: the comma can be replaced by a new line. White spaces following the comma are ignored.

MODBUS RTU slaves behind a MODBUS TCP gateway

ModbusPal can emulate MODBUS RTU devices as if they were behind a MODBUS TCP gateway.

Such MODBUS slaves must be identified by both an IP address and a slave number, and can be created by using one of the following patterns:

127.0.0.1(17)
Create juste one slave at IP address 127.0.0.1 (listen on all network interfaces) and slave number 17.
192.168.10.100(10-15)
Create 6 slaves sharing the same IP address (local network interface 192.168.10.100). Each slave is assigned a slave number ranging from 10 to 15 included.