User manual

Detailed descriptions of I/O modules | Digital counter module UR20-1CNT-100-1DO
139Manual u-remote1432790000/03/02.2014
1-time counting
No primary counting direction
– 1-time counting from the load value
– Counting up or down
– Fixed setting of the count limit to the maximum counting
range
– If the upper or lower count limits are exceeded, the coun-
ter always jumps to the other count limit. This allows the
status bits “overflow performed” or “underflow per-
formed” to be set and the internal gate to be automati-
cally closed. In addition, aprocess alarm can be triggered
if it is parametrized.
– To start the counting process once again, the internal
gate must be reopened.
– If the gate controls are interrupted, the counting process
continues from the current counter reading.
Countingrange
Limits Validrangeofvalues
Lower count limit –2 147 483 648 (–2
31
)
Upper count limit [phone] (2
31
– 1)
Upper
count limit
Lower
count limit
Load value
Gate start Gate startAutomatic
gate stop
Automatic
gate stop
Counter state
0
Overrun
Underrun
Time
1-timecounting,interruptedgatecontrols
Upper
count limit
Lower
count limit
Load value
Gate start Gate startAutomatic
gate stop
Automatic
gate stop
Counter state
0
Overrun
Underrun
Time
1-timecounting,cancelledgatecontrols
Primary counting direction up
– Up-counting starting at the load value
– If the end value -1 is reached during counting in the posi-
tive direction, the counter jumps to the load value at the
next positive count pulse and the internal gate is auto-
matically closed. In addition, a process alarm can be trig-
gered if it is parametrized.
– To restart the counting process, the internal gate must be
reopened and the counting starts at the load value.
– It is possible to count beyond the lower count limit.
Countingrange
Limits Validrangeofvalues
Lower count limit –2 147 483 647 (–2
31
+ 1) to [phone] (2
31
– 1)
Upper count limit [phone] (2
31
)
Lower
count limit
Load value
Gate start Gate startAutomatic
gate stop
Automatic
gate stop
Counter state
0
Overrun
End value
Underrun
Time
1-timecounting,primarycountingdirectionup
Primary counting direction down
– Down-counting from the load value
– If the end value +1 is reached during counting in the neg-
ative direction, the counter jumps to the load value at the
next count pulse and the internal gate is automatically
closed. In addition, a process alarm can be triggered if it
is parametrized.
– To restart the counting process, the internal gate must be
reopened and the counting starts at the load value.
– It is possible to count beyond the upper count limit.
Countingrange
Limits Validrangeofvalues
Lower count limit –2 147 483 647 (–2
31
) to [phone] (2
31
–2)
Upper count limit [phone] (2
31
–1)