en05000744_ansi.vsd
PulseCounter
BLOCK
READ_VAL
BI_PULSE
Pulse
INPUT OUT
Database
Pulse counter value:
0...2147483647
SMS settings
1.Operation = Off/On
2.tReporting = 0s...60min
3.Event Mask = No Events/Report Events
SingleCmdFunc
OUTx
SingleCmdFunc
OUTx
I/O-
module
Pulse length >1s
INVALID
RESTART
BLOCKED
NEW_VAL
INPUT1
INPUT2
INPUT3
INPUT4
EVENT
”Reset counter”
RS_CNT
NAME
SCAL_VAL
4.Scale = 1-90000
IEC EVENT
ANSI05000744 V1 EN
Figure 481: Overview of the pulse counter function
The BLOCK and READ_VAL inputs can be connected to Single Command blocks,
which are intended to be controlled either from the station HMI or/and the local HMI.
As long as the BLOCK signal is set, the pulse counter is blocked. The signal connected
to READ_VAL performs one additional reading per positive flank. The signal must be
a pulse with a length >1 second.
The BI_PULSE input is connected to the used input of the function block for the
Binary Input Module (BIM).
The RS_CNT input is used for resetting the counter.
Each pulse counter function block has four binary output signals that can be connected
to an Event function block for event recording: INVALID, RESTART, BLOCKED
and NEW_VAL. The SCAL_VAL signal can be connected to the IEC Event function
block.
The INVALID signal is a steady signal and is set if the Binary Input Module, where
the pulse counter input is located, fails or has wrong configuration.
The RESTART signal is a steady signal and is set when the reported value does not
comprise a complete integration cycle. That is, in the first message after IED start-up,
in the first message after deblocking, and after the counter has wrapped around during
last integration cycle.
The BLOCKED signal is a steady signal and is set when the counter is blocked. There
are two reasons why the counter is blocked:
1MRK505222-UUS C Section 16
Metering
985
Technical reference manual
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