Poznámky redaktora
.2 Front view
- "Power" LED (lit when Vaux installed)
- LED RX/TX (data send/receive signal).4 Power supply
The PR120/D-M COM communication module only powered the relay there 24V auxiliary voltage available.15.2. the wiring diagram provided this manual.2 PR120/D-M COM communication module
15..1 General characteristics
Dedicated communication module for connecting the relay Modbus net, and for remote supervisory and control activities the circuit-breakers.6 unication ction savailable
The communication function the PR122/P, PR123/P releases with PR120/D-M COM listed the table:
PR122/P PR123/P PR120/D-M COM
Protocol Modbus RTU
Physical interface RS-485
Baud rate 9600 19200 bit/s
15. 247 247 default address
Baudrate 9600 bit/s
19200 bit/s
Physical protocol 8,E,1 8,0,1 8,N,2 8,N,1
A ssin Modbus standard
ABB
Model L2234 Apparatus Scale
L 2778
Doc No- 2
Page No.7 PR120/D-M COM odule menu
Parameter Function Values Notes
Local/rem ote Local/remote
Serial address .2.2.2.
15.
t t
L L
t t
L L
L L
L L
L L
L L
tty fflt L
L L
L L
L L
L L
L L
L L
L L
L L
L L
L L
L L
L L
L L
L L
L L
L L
L L
L L
L L
L L
L L
L L
L L
L L
L L
L L
L L
L L
L L
L L
L L
L L
L L
L L
L L
L L
L L
L L
L L
L L
L L
L L
L L
L L
15.2.
15.
15.5 nnection
Refer fig.
120/158
.3 Releases com plete ith the odule
- optional for PR122/P
- optional for PR123/P
15.2.2
