ABB REF615 F - Function Block

5.4.2 Function block
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Figure 294: Function block
5.4.3 Functionality
The binary signal transfer function BSTGGIO is used for transferring binary
signals between the local and remote end line differential protection IEDs. 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.
BSTGGIO 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.
BSTGGIO includes a minimum pulse time functionality for the received binary
signals. Each received signal has its own minimum pulse time setting parameter.
BSTGGIO 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.
5.4.4 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.
Section 5 1YHT530004D05 D
Protection related functions
556 615 series
Technical Manual