Woodward HighPROTEC - Page 91

Installation and Connection
Modbus
®
RTU / IEC 60870-5-103 via RS485
Ensure the correct tightening torques.
RS485
RS485 – Electro-mechanical assignment
The Modbus
®
/ IEC 60870-5-103 connection cable must be shielded. The
shielding has to be fixed at the screw beneath the interface at the rear side of
the device.
The communication is halfduplex.
91 MCDGV4 DOK-HB-MCDGV4-2E
1
X103
2 3 4 5 6
P N
+5V GND
560

560

120 
Protective Relay
HF Shield
64 5321
R1
R2
R1
+5V
GND
R1 = 560 
R2 = 120 
P N
Protective Relay
HF Shield