75
Connecting to the RS-232C Port at the Host Section 4-1
Wiring for a Host Link Unit
(25-pin) Connection
Applicable Units:C200H-LK201-EV1
3G2A5-LK201-EV1
C500-LK203
3G2A6-LK201-EV1
CV500-LK201 (communications port 1)
Cables with connectors that can be used at serial port A:
XW2Z-200S (9-pin
⇔ 25-pin, 2 m)
XW2Z-500S (9-pin
⇔ 25-pin, 5 m)
Cables with connectors that can be used at serial port B:
XW2Z-200P (25-pin
⇔ 25-pin, 2 m)
XW2Z-500P (25-pin
⇔ 25-pin, 5 m)
CVM1/CV-series Host Link Units (CV500-LK201) have two types of connec-
tor; a 25-pin connector (communications port 1), and a 9-pin connector (com-
munications port 2). When using communications port 2, refer to Wiring for
Other Connections (Other Than the Memory Link Method) (page 76).
Serial Port A
* For Units that have a CTS setting selector switch, RS and CS do not have
to be shorted if this switch is set to 0 V.
Serial Port B
1
6
5
9
*
NT31/NT31C
114
13 25
FG
+5V
CS
RS
RD
SD
5G
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
-
-
-
-
FG
5G
CS
RS
RD
SD
ER
-
-
-
-
-
PLC (host link unit)
(25-pin type)
(9-pin type)
Abbreviation
Shielding wire
RS-232C
interface
Pin
number
Connector
hood
Abbreviation
Pin
number
RS-232C
interface
-
114
13 25
11