Technical data

Manual VIPA System 200V Chapter 9 SM 238C - Combination module
HB97E - SM - Rev. 09/19 9-29
No main counting direction:
• The counter counts starting with the load value.
• At over- or underrun at the count limits, the counter jumps to the
according other count limit and counts from there on.
• The count limits are set to the maximum count range.
Valid value range
Lower count limit - 2 147 483 648 (-2
31
)
Upper count limit + 2 147 483 647 (2
31
-1)
Counter value - 2 147 483 648 (-2
31
) to + 2 147 483 647 (2
31
-1)
Load value - 2 147 483 647 (-2
31
+1) to + 2 147 483 646 (2
31
-2)
upper
counter limit
load value
0
gate start
time
counter value
gate stop
lower
counter limit
overflow
underflow
Main counting direction forward
• The counter counts starting with the load value.
• When the counter reaches the end value –1 in positive direction, it
jumps to the load value at the next positive count pulse.
Valid value range
Limit value - 2 147 483 647 (-2
31
+1) to + 2 147 483 647 (2
31
-1)
Lower count limit - 2 147 483 648 (-2
31
)
Counter value - 2 147 483 648 (-2
31
) to end value -1
Load value - 2 147 483 648 (-2
31
) to end value -2
end value
lower
counter limit
Load value
0
gate start
overflow
underflow
time
counter value
gate stop
Periodically