ABB REG316 4 Series Operating Instructions Manual page 398

ABB Switzerland Ltd
· When the new impulse counter results are frozen at the end
of the interval, the binary output "Cnt1New", respectively
"Cnt2New" is set to TRUE. It is reset after 30 s regardless of
interval duration and can be used to initiate reading of a new
set of frozen interval values.
· If selected for transmission, transmission of the counter
values via the LON interface is initiated by the positive-going
edge of this output.
· The values E
channel are only recorded as measurement events providing
the output "Cnt1New", respectively "Cnt2New" is being used,
for example, to control an event recorder, LED or signalling
relay.
The freezing of results, resetting and event recording of the
interval counters is illustrated in Fig. 3.7.5.3.
Impulse counter input
Internal only
Pulse
acc_interval
Reset
Internal only
Pulse
accumulate
Counter 30 s
Frozen
t
Interval
Fig. 3.7.5.3 Interval processing
3-360
REG 316*4 1MRB520049-Uen / Rev. F
and Pulse
acc_interval
Measurement
event
30 s 30 s
t t
Interval Interval
of the respective
acc_interval
30 s 30 s
t t
Interval Interval
t
t
t
t
t