Rs-422A Multi-Drop Wiring Diagram Example - Automation Direct C-more EA1-T4CL Hardware User Manual

Chapter 6: PLC Communications

RS-422A Multi-Drop Wiring Diagram Example

DirectLOGIC
6
Port 2
Cable Adapter
(ZL CMA15L shown)
To DL06 PLC port 2
7 10 9 6
*
TXD+
TXD
Signal GND
* Termination resistors required at both ends of the
network receive data signals to match the impedance
of the cable (between 100 and 500 ohms).
6–36
DL06 PLC
(Slave)
ZL CMA15L
RXD
When connecting to a DirectLogic PLC
TXD
RS4 2/ 85 2 2
use connector ZL-CMA15L or ZL-CMA15
Shielded Cable
Notes: 1. We recommend Belden 8103 shielded cable or equivalent.
2. Wiring Diagram for this example, ZL-CMA15(L), on page 6-27
13 11 14 12 15
15-pin
HD D-sub
8 = do not use
(male)
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
HD = High Density
RXD+
RXD
Typical RS-422 Multi-Drop Wiring Diagram
® ® ®
EA1-TCL-M Hardware User Manual, 2nd Ed., 10/10
Port 2
L-CMA1 L
RXD
Cable Adapter
TXD
S422 48 32
(ZL CMA15L shown)
To D2-250-1 PLC port 2
7 10 9 6
15 = CTS–
14 = CTS+
15
13 = RXD+
12 = RTS-
11 = RTS+
10 = TXD–
9 = TXD+
shield
(Slave)
Shielded Cable
13 11 14 12 15
RXD+
RXD
TXD+
TXD
Signal GND
DirectLOGIC
DL205 PLC