ABB RELION Series - T_POS_XX Function Blocks

The function detects the transition from TRUE to FALSE at the CLK input. When the
falling edge is detected, the element assigns the Q output to TRUE. At the next
execution round, the output is returned to FALSE despite the state of the input.
Signals
Table 103: F_TRIG Input signals
Name Type Default Description
CLK BOOLEAN 0 Input signal
Table 104: F_TRIG Output signal
Name Type Description
Q BOOLEAN Output signal
Settings
The function does not have any parameters available in LHMI or PCM600.
3.16.1.9 T_POS_XX function blocks
Function block
GUID-4548B304-1CCD-454F-B819-7BC9F404131F V1 EN
Figure 73: Function blocks
Functionality
The circuit breaker position information can be communicated with the IEC 61850
GOOSE messages. The position information is a double binary data type which is fed
to the POS input.
T_POS_CL and T_POS_OP are used for extracting the circuit breaker status
information. Respectively, T_POS_OK is used to validate the intermediate or faulty
breaker position.
Table 105: Cross reference between circuit breaker position and the output of the function block
Circuit breaker position
Output of the function block
T_POS_CL T_POS_OP T_POS_OK
Intermediate '00' FALSE FALSE FALSE
Close '01' TRUE FALSE TRUE
Open '10' FALSE TRUE TRUE
Faulty '11' TRUE TRUE FALSE
Section 3 1MRS758755 A
Basic functions
128 REC615 and RER615
Technical Manual