Omron NV3Q Connection Manual page 67

S7-200 Series
5-1-1 RS-232C Connections
Connection Configuration
between PLC and PT
Connection Diagram
CPU
CPU212
PC/PPI Cable (9-pin
connector)
CPU214
CPU215
CPU216
CPU222
Cable: PC/PPI Cable
5-1-2 RS-485 Connections
Connection Diagram
CPU
CPU212
PLC
CPU214
CPU215
CPU216
CPU222
For an RS-232C connection, connect the S7-200 PC/PPI Cable and then con-
nect the cable and the PT as shown below.
S7-200
Connection diagram
Pin No. Signal
1
2 SD
3 RD
4
5 SG
6
7
RS
8
CS
9
Connection diagram
Pin No. Signal
1 FG
2 SG
3 RxD/TxD+
4 RS(TTL)
SG
5
6 +5V
7 +24V
8 RxD/TxD−
9 N.C.
PC/PPI Cable
To power
PT
supply
Pin No.
1
2
3
4
5
6
7
8
To power
PT
supply
Pin No. Signal
1
2
3
4
5
6
7
8
NV3W, NV4W, or NV3Q for
RS-232C
Signal
+
-
FG
SD
RD
NC
NC
SG
NV3W, NV4W, or NV3Q for
RS-485
+
−
FG
+SD
−SD
+RD
−RD
E
Section 5-1
PT
PT
PT
43