6–27
Chapter 6: PLC Communications
6
EA1-MG6-USER-M Hardware User Manual, 1st Ed. Rev C, 09/10
®
User Constructed Cables – Wiring Diagrams (cont’d)
Diagram 3
Diagram 4
Direct
Logic D2-DCM 25-pin D-sub port:
RS-232C
To DCM
25-Pin Port
2
3
7
TXD
RXD
GND
3
4
6
RXD
TXD
shield
25-pin
D-sub
(male)
Wiring Diagram
Note: Use the above wiring diagram if you need to make your own cable. We recommend using 22 AWG shielded cable.
4
RTS
5
CTS
1
25
25 = do not use
24 = do not use
23 = do not use
22 = do not use
21 = do not use
20 = do not use
19 = do not use
18 = do not use
17 = do not use
16 = do not use
15 = do not use
14 = do not use
13 = do not use
12 = do not use
11 = do not use
10 = do not use
9 = do not use
8 = do not use
7 = Signal GND
6 = +5 VDC
5 = CTS
4 = RTS
3 = RXD
2 = TXD
1 = do not use
1 = Sig GND
2 = do not use
3 = RXD
4 = TXD
5 = +5 VDC
6 = Sig GND
1 2 3 4 5 6
RJ12 6-pin
Phone Plug
(6P6C)
6
+5 V
5
+5 V
To
C-more
Micro-Graphic
Serial Port2
Direct
LOGIC D4-430/D4-440/D4-450 Port 1
and D3-350 Port 2, all RS-422A
To PLC
25-Pin Port
25-pin
D-sub
(male)
Wiring Diagram
Note: Use the above wiring diagram to make your own cable. We recommend Belden 8103 shielded cable or equivalent.
1
25
25 = do not use
24 = do not use
23 = CTS–
22 = do not use
21 = do not use
20 = do not use
19 = RTS+
18 = RTS–
17 = do not use
16 = TXD–
(RS422)
15 = do not use
14 = TXD+
(RS422)
13 = do not use
12 = do not use
11 = CTS+
10 = RXD–
(RS422)
9 = RXD+
(RS422)
8 = do not use
7 = 0 V
6 = do not use
5 = do not use
4 = do not use
3 = do not use
2 = do not use
1 = do not use
14
16
7
TXD+
TXD–
0V
9
10
5
1
RD+
RD–
shield
RXD+
RXD–
9
10
11
12
SD+
SD–
Term.
13
8 = do not use
7 = do not use
6 = do not use
5 = Logic GND
4 = do not use
3 = do not use
2 = do not use
1 = Frame GND
15 = do not use
14 = do not use
13 = Termination
12 = SD– (RS422)
11 = SD+ (RS422)
10 = RD– (RS422)
9 = RD+ (RS422)
1
15
15-pin
D-sub
(male)
18
RTS–
11
CTS+
23
CTS–
19
RTS+
To
C-more
Micro-Graphic
Serial Port2
NOTE:
The RS-422 wiring diagram shown above is not for multi-drop networks involving connecting more
than one PLC to a panel. Refer to the wiring diagram example on page 6-38 if more than one PLC will be
connected to a panel.
User Constructed
User Constructed
