Signals; Setting Parameters; Operation Principle - Hitachi Relion 650 Series Technical Manual

1MRK 511 557-UEN Rev. A
13.8.4

Signals

Table 328: PRPSTATUS Output signals
Name
LAN1-A
LAN1-B
13.8.5

Setting parameters

The PRPSTATUS function has no user settings.
Redundant station bus communication is configured in the LHMI under Main menu /Configuration/
Communication /TCP-IP configuration/ETHLAN1_AB where Operation mode, IPAddress and
IPMask can be entered.
13.8.6

Operation principle

The redundant station bus communication is configured using the local HMI, Main Menu /
Configuration/Communication /TCP-IP configuation/ETHLAN1_AB . The settings are also visible
in PST in PCM600.
Redundant communication runs in parallel, meaning that the same data package is transmitted on
both channels simultaneously. The received package identity from one channel is compared with the
data package identity from the other channel. If the identity is the same, the last package is
discarded.
PRPSTATUS supervises redundant communication on the two channels. If no data package has
been received on one or both channels within the last 10 s, the output LAN1-A and/or LAN1-B are
set to indicate error.
Technical Manual
Type Description
BOOLEAN LAN1 channel A status
BOOLEAN LAN1 channel B status
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Section 13
Station communication
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