Rs-422A/Rs-485A Multi-Drop Wiring Diagram Examples - C-more micro EA1-S6ML Hardware User Manual

Chapter 6: PLC Communications

RS-422A/RS-485A Multi-Drop Wiring Diagram Examples

DirectLOGIC
DL06 PLC
Port 2
6 6
To DL06 PLC port 2
7 10 9 6 13 11 14 12 15
*
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).
6–34
(Slave)
Shielded Cable
Note: We recommend Belden 8103 shielded cable or equivalent.
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-MG6-USER-M Hardware User Manual, 1st Ed. Rev C, 09/10
Port 2
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