Communication Guide, ©ComAp – March 2014 34
IGS-NT Communication Guide 03-2014.pdf
Hint:
For gen-set control for longer distance can be RS485 used. IG-NT-BB has no possibility of direct
connection to RS485 bus. This controller provides RS232 port only. External converter from RS232 to
RS485 may be a good solution (for example...ADAM).
Equipment
RS485 cable - Twisted pair, length up to 1 km
RS485 connection or RS485/RS232 or USB converter
RS232/RS485 – MODBUS (I-LB+)
Hint:
I-LB+ module 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)
Selection of CAN address. Open = ADDR1, Close = 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 I-LB+ module)
Selection of communication port (jumper is in RS232 or RS485 position)
Selection of communication speed by jumpers P13, P14 to 9600, 19200,
38400, 57600 bps
Open = terminator not connected, Close = terminator connected
Open = terminator not connected, Close = terminator connected
Controllers
RS232 on I-LB+
RS485 on I-LB+
RS232 on I-LB+
RS485 on I-LB+
RS232 on I-LB+
RS485 on I-LB+
RS232 on I-LB+
RS485 on I-LB+
RS232 on I-LB+
RS485 on I-LB+
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