IGS-NT Communication Guide
31
3.2.2 RS232/485 connection (I-LB+)
Note: Comms extension - I-LB+ Local bridge (page 64) enables monitoring and configuration up to 32
controllers interconnected via CAN(2) intercontroller bus. It is also possible to use I-LB+ for single controller
connection.
I-LB+ hardware setup
(all jumpers in those positions)
HW/SW control No matter
ComAp/ModBus
Open
Selection of CAN address. Open = ADDR1, Close = ADDR2
ADDR1/ADDR2
It is possible to use up to two I-LB+ devices in direct mode on CAN(2) bus. Let jumper
open in case of using one I-LB+ module. Other I-LB module has to have this jumper
closed. (read more about Comms extension - I-LB+ Local bridge (page 64))
DIRECT/MODEM Open
RS485/RS232 Selection of communication port (jumper is in RS232 or RS485 position)
Comm. speed. No matter
RS485 120 Ohm Open = terminator not connected, Close = terminator connected
CAN 120 Ohm Open = terminator not connected, Close = terminator connected
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