INST.No.INE-863B KR2S
【
Communication Interface
】
Instruction Manual
-17-
6-3
Communication Line Wiring
6-3-1
Connections of High order communication RS-485
The RS-485 communications interface is connected to a personal computer via a protocol converter. Three
signals of SA, SB and SG are used between the protocol converter and a personal computer and a control
signal is not used. Wiring process of connector differs from how the personal computer uses the control
signal hence please understand your personal computer.
Turn the switch of RS422A/RS485 to
RS422A.
Avoid connecting SG line to FG terminal or ground terminal of the
device.
Termination
resistor
100
Ω
Device side
Protocol converter
SC8-10
1
2
3
4
5
6
7
8
Cable for RS-232C(Max. 15m)
RZ-CRS6
□□
Communication port
PC side
RD
SD
SG
RD
SD
SG
RDA
RDB
SA
SB
SG
SA
SB
SG
SA
SB
SG
Summary of Contents for KR2S
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