Dnp3 Tcp/Ip Mode; Dnp3 Point Settings; Binary Input Points; Binary Output Status Points And Control Relay Output Blocks - ABB 620 Series Manual

Section 3
Vendor-specific implementation
3.1.3
3.2
3.2.1
3.2.2
12

DNP3 TCP/IP mode

DNP3 TCP/IP link mode is supported by the protection relay.
The protection relay listens for a connection from a DNP3 master on port 20000. A single
DNP3 session can be run concurrently with IEC 61850, Modbus Serial and/or Modbus
TCP. Documentation concerning DNP3 TCP/IP communication is available from
www.dnp.org.

DNP3 point settings

Binary input points

The binary input event buffer size is set to allow 200 events. Events that occur after buffer
overflow are discarded.
Table 1: Binary input points
Description
Static (steady-state) object number
Change event object number
Static variation reported when variation 0 requested
(default setting)
Change event variation reported when variation 0
requested (default setting)
Table 2: Default Class assignment for Binary Input points
Point index Name/description
See the point list manual.

Binary output status points and control relay output blocks

The BOS points (object 10) and the CROBs (object 12) are provided in the configuration-
specific point list.
While BOS points are included here for completeness, that is they are required by the
DNP3 standard, they are not often polled by DNP3 Masters. The DNP3 standard
recommends that BOS points represent the most recent DNP3 command value for the
corresponding CROB point. Because many, if not most, CROB points are controlled
internally through pulse mechanisms, the value of the output status may be meaningless.
Value
1
2
1 (binary input without status)
2 (binary input change with time)
Default change event assigned class (1, 2, 3 or
none)
1
Communication Protocol Manual
1MAC459571-IB C
620 series ANSI