Modbus Protocol Mbslprt; Dnp3 Protocol Dnplprt - ABB RELION REX640 Technical Manual

1MRS759142 F
3.2.13

Modbus protocol MBSLPRT

3.2.13.1 Function block
Figure 19: Function block
3.2.13.2 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
setting
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
protocol instances can point to the same mapping set.
For more information on the Modbus server protocol, see the Modbus
communication protocol manual.
3.2.14

DNP3 protocol DNPLPRT

3.2.14.1 Function block
Figure 20: Function block
3.2.14.2 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.
Over Ethernet/TCP, the protocol optionally supports secure authentication with
symmetric keys. The implementation follows the IEC 62351-5 security standard
specification as well as the descriptions in DNP3 standard part 7, IP-networking
chapter "Secure authentication".
REX640
Technical Manual
MBSLPRT1
STATUS
Port should have the communication interface assignment.
Mapping selection points to the mapping set used. Several Modbus
DNPLPRT1
STATUS
Basic functions
Operation should be "On" and
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