Poznámky redaktora
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
Addressing Modbus standard
ABB
Model 3447
A pparatus Emax DC
S cale
d c.
14.6 Communication functionsavailable
The communication function the PR122/DC, PR123/DC releases with PR120/D-M COM listed the table:
PR122/DC PR123/DC PR120/D-M COM
Protocol Modbus RTU
Physical interface RS-485
Baud rate 9600 19200 bit/s
14.14.2 120/D ica tio le
14.2.2.2.
14.
80/1 08
.3 Releases complete with the module
- optional for PR122/DC
- optional for PR123/DC
14.2 Front view
- "Power" LED (lit when Vaux installed)
- LED RX/TX (data send/receive signal).n 1SDH000635R0002
Page No.
14. the wiring diagram provided this manual...2.5 Connection
Refer fig.7 PR120/D-M COM module menu
Parameter Function Values Notes
Local/remote Local/remote
Serial address .1 General characteristics
Dedicated communication module for connecting the relay Modbus net, and for remote supervisory and control activities the circuit-breakers.2.
14.2.2.4 Power supply
The PR120/D-M COM communication module only powered the relay there 24V auxiliary voltage available
