I RS-485 Connection
Control data is transmitted and received between the con-
troller and other peripherals. Use a shielded cable of data
communication grade, consisting of two twisted pairs suit-
able for RS485. Cable length may be extended up to
1 200 m {4 000 ft}.
G
5
GND
G Internal Diagram
Note: Make sure to turn the DATA switch on the rear of the
controller to RS-485 position.
14
T
R
B
A
B
A
RS485
4
3
2
1
TB TA RB RA
4
TB
3
TA
2
RB
1
RA