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Section 3-6
*,
3-6
Reset Signals
For every Counter a reset of the Counter Value to zero can be triggered by the fol-
lowing Sources:
•
Software Reset Bit
•
Digital Input
•
Z-signal
In order for a Digital Input or the Z-Signal to trigger a Reset this must be enabled
by the Software Reset Enable Bit. Additionally a Digital Input can be assigned the
function of Reset Enable (Function 15, refer to 3-4
Software Reset Bit as Reset
Source
For every Counter the Software Reset Bit can be used to trigger a Reset. The Soft-
ware Reset Bit has priority over all other Reset Sources. Setting the Software
Reset Bit triggers a Reset in the next I/O Refresh Cycle.
Digital Input as Reset
Source
In order to use a Digital Input as Reset Source you must assign Function 5, 6, 11,
12, 13 or 14 to the corresponding Digital Input. Refer to 3-4
for more information.
Z-Input Signal as Reset
Source
If you want to use the Z-Signal of an incremental encoder as a Reset Source this
must first be enabled in DM. Using the Z-Signal can be enabled for every Counter.
Reset sources
Software Reset Bit
Digital Input
Z-Signal
OR
OR
AND
Reset Enable sources:
Software Reset Enable Bit
Digital Input
Optional
Reset
Trigger
CNT1:
CNT2:
CNT3:
CNT4:
n+2
n+5
n+8
n+11
Software Reset Bit:
0
→
1 = Reset Counter
15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
0
CNT1:
CNT2:
CNT3:
CNT4:
m+32
m+77
m+122
m+167
Z-Signal Control:
0 = Z-Signal Reset Disabled
1 = Z-Signal Reset Enabled
15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
0
W902-E2-03.book Seite 79 Donnerstag, 7. Oktober 2004 2:06 14
Содержание CS1W-CT021
Страница 1: ...OPERATION MANUAL High speed Counter Units CS1W CT021 CS1W CT041 Cat No W902 E2 03...
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