Extension Port; Optional 61850 Interface - Allen-Bradley Rockwell Automation 857 User Manual

Extension Port

This is an RS-485 port for external I/O devices. The port is located in
the same rear panel connector X9 or X10. See Figure 7.1 and
Chapter 9, Technical Data.
Table 7.4 – Extension Port X4 Parameters
Parameter Value
Protocol
None
SPA-bus
ProfibusDP
ModbusSla
ModbusTCPs
IEC-103
ExternalIO
DNP3
Msg# 0 ... 2 –1
32
Errors 0 ... 2 –1
16
Tout 0 ... 2 –1
16
speed/DPS
Default =
38400/8N1 for
SetPointPS
Set = An editable parameter (password needed)
Clr = Clearing to zero is possible
The communication parameters are set in the protocol specific menus. For the local port
command line interface, the parameters are set in configuration menu.

Optional 61850 Interface

With this option the relay has two communication connectors in
the rear panel : RJ-45 connector (61850 interface, Ethernet
10/100-Base T) and a 6-pin connector (Extension port).
Communications
Unit Description
Protocol selection for the extension
port.
Command line interface for
SetPointPS
SPA-bus (slave)
Profibus DB (slave)
Modbus RTU slave
Modbus TCP slave
IEC-60870-5-103 (slave)
Modbus RTU master for external
I/O-modules
DNP 3.0
Message counter since the device
has restarted or since last clearing
Protocol errors since the device has
restarted or since last clearing
Timeout errors since the device has
restarted or since last clearing
Display of actual communication
parameters.
speed = bit/s
D = number of data bits
P = parity: none, even, odd
S = number of stop bits
7-5
Note
Set
Clr
Clr
Clr
857-UM001A-EN-P – July 2009