ABB REG316 4 Series - Impulse Counter Operating Principle; Impulse Counter Operation

ABB Switzerland Ltd REG 316*4 1MRB520049-Uen / Rev. F
3-358
3.7.5.2. Impulse counter operation
Fig. 3.7.5.2 shows the principles of impulse counter operation.
Impulse
counter
input
t
interval
freeze
t
interval
Intermediate
buffer
acc_interval
Scaling
factor
Scaling
E
acc_interval
Block diagram for one impulse counter channel
Counter
Scaling
E
accumulate
Pulse
accumulate
Scaling
factor
Reset
Intermediate
buffer
accumulate
Pulse
acc_interval
Impulse counter
input
Signal response
E
accumulate
Pulse
accumulate
E
acc_interval
Pulse
acc_interval
t
interval
t
t
t
t
t
interval t
interval
t
interval
Counter values
to be transferred
Reset
Counter value
to be transferred
Fig. 3.7.5.2 Block diagram for one impulse counter channel and
signal response
3.7.5.3. Impulse counter operating principle
The binary inputs “Reset1” and “Reset2” reset the counter
values E
accumulate
and Pulse
accumulate
to zero. The interval values
E
acc_interval
and Pulse
acc_interval
are not reset.