User manual

6 Detailed descriptions of I/O modules | Digital counter module UR20-1CNT-100-1DO
342 1432790000/08/12.2015Manual u-remote
1-time counting / primary direction up
Lower
count limit
Load value
Gate start Gate startAutomatic
gate stop
Automatic
gate stop
Counting value
0
Overrun
End value
Underrun
Time
1-time counting, primary counting direction up
– Up-counting starts at the load value.
– If the parametrerised end value -1 is reached during
counting in the positive direction, the counter jumps back
to the load value at the next positive count pulse. The
internal gate is automatically closed, the status bit "End
value reached" ist set and a process alarm will be trig-
gered if it is parameterised.
– To restart counting, the internal gate must be reopened.
Counting starts again at the load value.
– Upon reaching the lower count limit the counter jumps to
the upper count limit to continue counting from there.
The status bit "Underflow performed" is set and a process
alarm will be triggered if it is parameterised. All status
bits remain set until they are reset with the bit "Reset sta-
tus bits" in the control word.
Counting range
Limits Valid range of values
End value –2 147 483 647 (–2
31
+ 1) to [phone] (2
31
– 1)
Lower count limit [phone] (-2
31
)
1-time counting / primary direction down
Upper
count limit
Load value
End value
Gate start Gate startAutomatic
gate stop
Automatic
gate stop
Counting value
0
Time
1-time counting, primary count direction down.
– Down-counting starts at the load value.
– If the parametrerised end value +1 is reached during
counting in the negative direction, the counter jumps
back to the load value at the next count pulse. The inter-
nal gate is automatically closed, the status bit "End value
reached" ist set and a process alarm will be triggered if it
is parameterised.
– To restart counting, the internal gate must be reopened.
Counting starts again at the load value.
– Upon reaching the upper count limit the counter jumps to
the lower count limit to continue counting from there.
The status bit "Overflow performed" is set and a process
alarm will be triggered if it is parameterised. All status
bits remain set until they are reset with the bit "Reset sta-
tus bits" in the control word.
Counting range
Limits Valid range of values
End value –2 147 483 648 (–2
31
) to [phone] (2
31
–2)
Upper count limit [phone] (2
31
–1)