Wiring The Communications Cable - Omron K7GE-MG User Manual

3-6

Wiring the Communications Cable

When you use the communications function, wire a communications cable.
Connect (+) to the No. 5 terminal
and (-) to the No. 6 terminal on
the Main Unit.
Crossover wiring is possible as
this is a Push-In Plus terminal
block.
The connection configuration of
Master:Slave is 1:1 or 1:N. In the
case of the 1:N connection
configuration, you can connect up
to 32 Units including the host
system that is the master.
The total cable length is 500 m
max.
Install a terminating resistance of 120 Ω, 1/2 W on both ends of the transmission path.
Use a twisted-pair cable (AWG 24 to AWG 16) as the cable.
Insulation Resistance Monitoring Device User's Manual (N224)
Communications converter
RS-485
Terminating resistance
120 Ω 1/2 W
5 6 5
(+) (-) (+)
K7GE-MG K7GE-MG
Main Unit Main Unit
Up to 32 Units (including the host system)
3 Installation and Wiring
PC
USB
USB
Terminating resistance
(+) (-)
6
(-)
500 m max.
120 Ω 1/2 W
5 6
3
(+) (-)
K7GE-MG
Main Unit
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