Fixed Signal Function Block Fxdsign; Identification; Application - ABB REQ650 Applications Manual

Section 10
Logic
10.6
10.6.1
10.6.2
202
Execution of functions as defined by the configurable logic blocks runs according
to a fixed sequence with different cycle times.
For each cycle time, the function block is given an serial execution number. This is
shown when using the ACT configuration tool with the designation of the function
block and the cycle time, see example below.
IEC09000695 V2 EN-US
Figure 77: Example designation, serial execution number and cycle time for
logic function
The execution of different function blocks within the same cycle is determined by
the order of their serial execution numbers. Always remember this when
connecting two or more logical function blocks in series.
Always be careful when connecting function blocks with a fast
cycle time to function blocks with a slow cycle time.
Remember to design the logic circuits carefully and always check
the execution sequence for different functions. In other cases,
additional time delays must be introduced into the logic schemes to
prevent errors, for example, race between functions.

Fixed signal function block FXDSIGN

Identification

Function description
Fixed signals

Application

The Fixed signals function (FXDSIGN) has nine pre-set (fixed) signals that can be
used in the configuration of an IED, either for forcing the unused inputs in other
IEC09000695_2_en.vsd
IEC 61850 IEC 60617
identification identification
FXDSIGN -
Breaker protection REQ650 2.2 IEC
1MRK 505 383-UEN A
IP15080-1 v2
SEMOD167904-2 v2
ANSI/IEEE C37.2
device number
-
M15322-3 v12
Application manual