17.1.6 Monitored data
PID-3830-MONITOREDDATA v1
Table 801: PCFCNT Monitored data
Name Type Values (Range) Unit Description
CNT_VAL INTEGER - - Actual pulse counter value
SCAL_VAL REAL - - Scaled value with time and status
information
17.1.7 Operation principle
IP14087-1 v2
M13397-3 v5
The registration of pulses is done for positive transitions (0->1) on one of the 16 binary input
channels located on the Binary Input Module (BIM). Pulse counter values are sent to the station
HMI with predefined cyclicity without reset.
The reporting time period can be set in the range from 1 second to 60 minutes and is synchronized
with absolute system time. Interrogation of additional pulse counter values can be done with a
command (intermediate reading) for a single counter. All active counters can also be read by the
LON General Interrogation command (GI) or IEC 61850.
Pulse-counter logic (PCFCNT) function in the IED supports unidirectional incremental counters.
That means only positive values are possible. The counter uses a 32 bit format, that is, the
reported value is a 32-bit, signed integer with a range 0...+2147483647. The counter is reset at
initialization of the IED.
The reported value to station HMI over the station bus contains Identity, Scaled Value (pulse count
x scale), Time, and Pulse Counter Quality. The Pulse Counter Quality consists of:
• Invalid (board hardware error or configuration error)
• Wrapped around
• Blocked
• Adjusted
The transmission of the counter value by SPA can be done as a service value, that is, the value
frozen in the last integration cycle is read by the station HMI from the database. PCFCNT updates
the value in the database when an integration cycle is finished and activates the NEW_VAL signal
in the function block. This signal can be connected to an Event function block, be time tagged, and
transmitted to the station HMI. This time corresponds to the time when the value was frozen by
the function.
The pulse-counter logic function requires a binary input card, BIMp, that is specially
adapted to the pulse-counter logic function.
M13399-3 v9
Figure 575 shows the pulse-counter logic function block with connections of the inputs and
outputs.
1MRK 502 066-UUS B Section 17
Metering
1103
Technical manual
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