Chapter 6: PLC Communications
User Constructed Cables – Wiring Diagrams
Diagram 1
To PLC
15-Pin Port
15-pin
HD D-sub
(male)
8 = do not use
7 = Sig GND
6 = RXD–
5 = do not use
6
4 = do not use
3 = do not use
1 6
2 = do not use
1 = do not use
Note: Use the above wiring diagram to make your own cable. We recommend Belden 8103 shielded cable or equivalent.
Diagram 2
To PLC
15-Pin Port
15-pin
HD D-sub
(male)
8 = do not use
7 = Sig GND
6 = RXD–
5 = do not use
4 = do not use
3 = do not use
1 6
2 = do not use
1 = do not use
Note: Use the above wiring diagram to make your own cable. We recommend Belden 9842 shielded cable or equivalent.
NOTE: The RS-422 and RS-485 wiring diagrams shown above are not for multi-drop networks involving
connecting more than one PLC to a panel. Refer to the wiring diagram examples starting on page 6-32 if more
than one PLC will be connected to a panel.
6–24
Direct LOGIC DL06, D2-250, D2-250-1, D2-260
(all Port 2) RS-422A
9
TXD+
10
TXD–
13
15 = CTS–
RXD+
15
14 = CTS+
6
RXD–
13 = RXD+
7
12 = RTS-
GND
11 = RTS+
12
RTS–
10 = TXD–
15
CTS–
9 = TXD+
11
RTS+
14
CTS+
Direct LOGIC DL06, D2-260 (both Port 2)
13
RXD+
9
TXD+
10
15 = CTS–
TXD–
15
14 = CTS+
6
RXD–
13 = RXD+
7
12 = RTS-
GND
12
11 = RTS+
RTS–
10 = TXD–
15
CTS–
9 = TXD+
11
RTS+
14
CTS+
®
EA1-TCL-M Hardware User Manual, 2nd Ed., 10/10
Wiring Diagram
13
Term.
9
RD+
10
RD–
11
SD+
12
SD–
5
1
shield
RS-485A
Wiring Diagram
13
Term.
9
RD+
11
SD+
10
RD–
12
SD–
5
1
shield
User Constructed
To C-more Micro-Graphic
Serial Port2
15-pin
D-sub
(male)
8 = do not use
15 = do not use
7 = do not use
14 = do not use
15
6 = do not use
13 = Termination
5 = Logic GND
12 = SD– (RS422)
4 = do not use
11 = SD+ (RS422)
3 = do not use
10 = RD– (RS422)
2 = do not use
9 = RD+ (RS422)
1
1 = Frame GND
User Constructed
To C-more Micro-Graphic
Serial Port2
15-pin
D-sub
(male)
8 = do not use
15 = do not use
7 = do not use
14 = do not use
15
6 = do not use
13 = Termination
5 = Logic GND
12 = SD– (RS485)
4 = do not use
11 = SD+ (RS485)
3 = do not use
10 = RD– (RS485)
2 = do not use
9 = RD+ (RS485)
1
1 = Frame GND
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