ABB REB670 Series Applications Manual page 346

Section 13
Logic
IEC09000695 V2 EN-US
Figure 190: Example designation, serial execution number and cycle time for logic
IEC09000310 V2 EN-US
Figure 191: Example designation, serial execution number and cycle time for logic
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.
13.6 Fixed signal function block FXDSIGN
13.6.1 Identification
Function description
Fixed signals
340
function
function that also propagates timestamp and quality of input signals
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.
IEC 61850
identification
FXDSIGN
IEC09000695_2_en.vsd
IEC09000310-2-en.vsd
IEC 60617
identification
-
1MRK 505 370-UEN D
SEMOD167904-2 v2
ANSI/IEEE C37.2
device number
-
Busbar protection REB670
Application manual
IP15080-1 v2