Communication Guide, ©ComAp – March 2014 31
IGS-NT Communication Guide 03-2014.pdf
RS485 ModBus
Controllers
Hint:
Some controllers do not allowe direct RS485 connection, however RS485 connection is available for
all mentioned controllers via external bridge I-LB+.
Controller setup
(Setpoints/Comms settings group)
RS232(2) mode = MODBUS-DIRECT
RS232(2)MBCSpd = 9600, 19200, 38400, 57600
Equipment
RS485 connection or RS485/USB converter