;&'4&'-0)*'")<
Section 3-5
*)
Note
1. Multiple Comparison Values of a specific Counter may not have the same
value. The Unit will generate an error if multiple CV’s have the same value
(refer to 5-2
for more details).
2. CV-Data can also be changed on the fly. Refer to 4-3
more details.
3. The Digital Outputs are Set/Reset in the chronological order of reaching the
CV’s. After reaching a (new) CV the (old) Unit Output Pattern is updated.
4. In case for a CV both a Set and a Reset in one and the same counting direction
for a specific Output are defined, the Reset has priority.
5. You should prevent quick changes in the counting direction near a CV. A quick
change of direction might cause the High-speed Counter Unit to miss the pos-
itive and negative crossing of that CV.
6. If Comparison Mode is used with Ring Counter Mode, a maximum Ring Value
2 or more should be set up. Note that a value 1 will not generate an error mes-
sage.
Reflecting Active / Not
Active Comparison Values
A Comparison Value becomes active if the Counter Value is greater than or equal
to that Comparison Value. Whether or not a CV is active is reflected in CIO for
each Counter.
Note
Each time a CV is crossed (in positive or negative counting direction) an Output
can be Set, Reset or remain Unchanged. In this way, every Counter is able to
change the Unit Output Pattern. Therefore, the Unit Output Pattern is updated by
all four Counters in the chronological order of crossing the CV’s.
Enable / Disable
Comparison Values
Every single CV can be enabled or disabled. If a CV is disabled (by default) no
action will be taken on reaching that CV. If a CV is enabled, depending on the
direction of counting, the Set/Reset Output Patterns will be applied to the Unit Out-
put Pattern on reaching that CV. To Enable/Disable CV’s of Counters refer to the
following:
Note
Enabling/Disabling of CV’s can also be done on the fly by using IOWR-instruc-
tions. Refer to 4-3
for more details.
CNT1:
CNT2:
CNT3:
CNT4:
n+20
n+25
n+30
n+35
15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0
n+21
n+26
n+31
n+36
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
Active Comparison Values:
= Comparison Value 0-31
0 = Comparison Value not Active
1 = Comparison Value Active
Comparison Value Active:
Counter Value
≥
Comparison Value
Comparison Value not Active: Counter Value
<
Comparison Value
15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
0
CNT1:
CNT2:
CNT3:
CNT4:
m+57
m+102
m+147
m+192
15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0
m+58
m+103
m+148
m+193
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
Comparison Value Enable Data:
= Comparison Value 0-31
0 = Comparison Value Disabled
1 = Comparison Value Enabled
15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
0
W902-E2-03.book Seite 76 Donnerstag, 7. Oktober 2004 2:06 14
Summary of Contents for CS1W-CT021
Page 1: ...OPERATION MANUAL High speed Counter Units CS1W CT021 CS1W CT041 Cat No W902 E2 03...
Page 3: ...W902 E2 03 book Seite iv Donnerstag 7 Oktober 2004 2 06 14...
Page 5: ...W902 E2 03 book Seite vi Donnerstag 7 Oktober 2004 2 06 14...
Page 39: ...W902 E2 03 book Seite 24 Donnerstag 7 Oktober 2004 2 06 14...
Page 59: ...A 2 Section 2 3 W902 E2 03 book Seite 44 Donnerstag 7 Oktober 2004 2 06 14...
Page 155: ...4 Section 4 6 W902 E2 03 book Seite 140 Donnerstag 7 Oktober 2004 2 06 14...
Page 199: ...G W902 E2 03 book Seite 184 Donnerstag 7 Oktober 2004 2 06 14...