16
iCON iProtect Instruction Manual Rev 4.4
17. Communication link – RS485
The control panel has a communication interface. The wire communication distance is less than
1200 metres.
For those installations or environments which require a longer distance communication, users can
use RS485 extender, wireless communication or GSM units.
Please contact White International for more information.
Technical data
Physical interface
RS485 Bus Interface: asynchronous semi duplex
Data format
1 start bit, 8 data bit, 1 stop bit, no verify
1 start bit, 8 data bit, 2 stop bit, no verify
Default: 1 start bit, 8 data bit, 1 stop bit, no verify
Baud rate
1200,2400,4800,9600 bps (default 9600bps)
Communication address
Setting range of controller address: 1-126
127: broadcast address, host computer broadcasting,
slave machine response forbidden
Protocol type
MODBUS protocol (RTU)
Rated input voltage for SC
AC 240V/50Hz, single phase
Installation data
Wire communication distance 1200 metres max by shield twisted pair cable (STP)
for RS485 & CAN
5000 metres max by STP and RS485 extender
STP
STP-120U one pair 20AWG for RS485 & CAN
RS485 extender
5000 metres (9600bps)
Function
switch
Capacitor
terminals
Capacitor
connection
prewired
NEVER
connect 240V
to terminals
N1, N2, C
or
# 1 - #12
