The function can be blocked through a block input. During the block time, input is
not counted and outputs remain in their previous states. However, the counter can
be initialized after reset of the function. In this case the outputs remain in their
initial states until the release of the block input.
11.9.3.2 Reporting
GUID-7DF874A7-F7DA-48DD-8760-5E4CF05FD870 v1
The content of the counter can be read on the local HMI.
Reset of the counter can be performed from the local HMI or via a binary input.
Reading of content and resetting of the function can also be performed remotely,
for example from a IEC 61850 client. The value can also be presented as a
measurement on the local HMI graphical display.
11.9.4 Function block
GUID-C90E7375-F3CC-414A-93FC-9AC4A9156FFC v1
L4UFCNT
BLOCK
INPUT
RESET
ERROR
OVERFLOW
LIMIT1
LIMIT2
LIMIT3
LIMIT4
VALUE
IEC12000029-1-en.vsd
IEC12000029 V1 EN-US
Figure 232: L4UFCNT function block
11.9.5 Signals
PID-6966-INPUTSIGNALS v2
Table 361: L4UFCNT Input signals
Name
Type Default Description
BLOCK BOOLEAN 0 Block of function
INPUT BOOLEAN 0 Input for counter
RESET BOOLEAN 0 Reset of function
PID-6966-OUTPUTSIGNALS v2
Table 362: L4UFCNT Output signals
Name
Type Description
ERROR BOOLEAN Error indication on counter limit and/or initial
value settings
OVERFLOW BOOLEAN Overflow indication on count of greater than
MaxValue
LIMIT1 BOOLEAN Counted value is larger than or equal to
CounterLimit1
Table continues on next page
1MRK 505 384-UEN A Section 11
Monitoring
Breaker protection REQ650 2.2 IEC 485
Technical manual
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