ABB REB650, Техническое руководство

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13.1.6 Monitored data
Table 288: PCGGIO 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
13.1.7 Operation principle
The registration of pulses is done according to setting of CountCriteria parameter on
one of the 9 binary input channels located on the BIO module. 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 IEC 61850.
Pulse counter (PCGGIO) 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 value is stored in semiretain memory.
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 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.
PCGGIO 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 time tagged,
and transmitted to the station HMI. This time corresponds to the time when the value
was frozen by the function.
The BLOCK and READ_VAL inputs can be connected to 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
1MRK 505 277-UUS C
Section 13
Metering
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Technical Manual