Functionality; Dnp3 Protocol Dnplprt; Function Block - ABB RELION REX640 Technical Manual

1MRS759142 C
3.2.11.2
3.2.12
3.2.12.1
3.2.12.2
REX640
Technical Manual

Functionality

The function block represents a Modbus server protocol instance in the protection
relay. Function block settings include communication interface assignment for the
instance, that is, Ethernet/TCP or serial.
A Modbus server protocol instance is activated if the function block instance is added
to the application configuration. The setting Operation should be "On" and setting
Port should have the communication interface assignment.
The STATUS output of the function block is active if Modbus client requests have
been received on the communication interface within 15 seconds.
By default no Modbus data is mapped to the protocol interface. Protocol data has to be
created using Communication Management in PCM600. There are two mapping sets,
"Mapping 1" and "Mapping 2", and either can be used. Setting parameter Mapping
selection points to the mapping set used. Several Modbus protocol instances can point
to the same mapping set.
For more information on the Modbus server protocol, see the Modbus communication
protocol manual.

DNP3 protocol DNPLPRT

Function block

DNPLPRT1
STATUS
GUID-0DBC4C99-AA2E-4BBA-8854-70A1D277E38A V1 EN
Figure 16: Function block
Functionality
The function block represents one DNP3 server protocol instance in the protection
relay. Function block settings include communication interface assignment for the
instance, that is, Ethernet/TCP(+UDP) or serial.
A DNP3 server protocol instance is activated if the function block instance is added
to the application configuration. The setting Operation should be "On" and setting
Port should have the communication interface assignment.
The STATUS output of the function block is active if DNP3 client requests or DNP3
supervision messages have been received on the communication interface within an
interval defined by the link keep-alive parameter.
By default no DNP3 data is mapped to the protocol interface. Protocol data has to be
created using Communication Management in PCM600. There are two mapping sets,
Section 3
Basic functions
95