Function Block - ABB 615 series Technical Manual

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1MAC059074-MB A

615 series ANSI

Technical Manual

Function block

GUID-203004E3-0DF3-4D30-979F-A0951F30B159 V1 EN

Function block

Functionality

The binary signal transfer function BST is used for transferring binary signals between the

local and remote end line differential protection relays. The function includes eight binary

signals that are transferred in the protection communication telegram and can be freely

configured and used for any purpose in the line differential application.

BST transfers binary data continuously over the protection communication channel

between the terminals. Each of the eight signals are bidirectional and the binary data sent

locally is available remotely as a received signal.

BST includes a minimum pulse time functionality for the received binary signals. Each

received signal has its own minimum pulse time setting parameter.

The function includes two alarm output signals. The SEND_SIG_A output signal is

updated according to the status of the sent binary signals. The RECV_SIG_A output

signal is updated according to the status of the received binary signals. Each signal can be

separately included or excluded from the alarm logic with a setting parameter.

Operation principle

The Signal 1...8 mode setting can be used for changing the operation of the bidirectional

signal channel. The signal channel can be disabled by setting the corresponding parameter

value to "Not in use". When the signal channel is disabled locally or remotely, the

corresponding RECV_SIG_1...8 signal status is always false on both ends.

Protection related functions

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