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247
GRT1-CT1(-1) Counter Units
Section 7-4
The user can set the configuration tag to any value between 0 and 255. The
configuration tag is downloaded with the rest of the parameter settings to the
Counter Unit and uploaded with the rest of the parameter settings from the
Counter Unit.
■
Counter Input Mode
Select one of the following counter input modes.
Phase Differential Counting
The following figure illustrates the operation of phase differential counting.
Counter input mode
Description
Phase differential
×
1
Phase-shifted pulses are received on inputs A and B.
• When the pulses on input A lead the pulses on input B, the
counter value is incremented on the falling edge of input A.
• When the pulses on input B lead the pulses on input A, the
counter value is decremented on the rising edge of input A.
Phase differential
×
2
Phase-shifted pulses are received on inputs A and B.
• When the pulses on input A lead the pulses on input B, the
counter value is incremented.
• When the pulses on input B lead the pulses on input A, the
counter value is decremented.
• The counter value is changed on the rising and falling edges
of input A.
Phase differential
×
4
Phase-shifted pulses are received on inputs A and B.
• When the pulses on input A lead the pulses on input B, the
counter value is incremented.
• When the pulses on input B lead the pulses on input A, the
counter value is decremented.
• The counter value is changed on the rising and falling edge
of both input A and input B.
Pulse and direction
Input A pulses are counted and input B determines the direc-
tion of counting.
• While input B is OFF, the counter value is incremented.
• While input B is ON, the counter value is decremented.
• The counter value is changed on the falling edge of input A.
Up/down Counter
• The counter value is incremented when pulses are received
on input A.
• The counter value is decremented when pulses are received
on input B.
• The counter value is changed on the falling edge of input A
or B.
2
2
2
2
2
3
2
1
1
1
1
0
0
12
9
9
8
8
8
7
7
7
6
6
6
6
5
5
5
5
5
4
4
4
4
4
4
3
3
3
3
3
3
2
2
2
1
1
0
Input A
Input B
×
1
×
2
×
4
10 11
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Summary of Contents for SmartSlice GRT1-Series
Page 1: ...Slice I O Units Cat No W455 E1 06 SmartSlice GRT1 Series OPERATION MANUAL ...
Page 2: ...SmartSlice GRT1 Series Slice I O Units Operation Manual Revised November 2007 ...
Page 3: ...iv ...
Page 5: ...vi ...
Page 13: ...xiv ...
Page 21: ...xxii EC Directives 6 ...
Page 63: ...42 Connecting Turnback Cables Section 3 3 ...
Page 109: ...88 Digital I O Units Section 4 6 ...
Page 251: ...230 Maintenance Information Window Section 7 3 Maintenance Information Window ...
Page 293: ...272 GRT1 CP1 L Positioning Unit Section 7 5 ...
Page 301: ...280 GRT1 END End Unit Section 8 5 Dimensions 11 9 11 9 55 7 1 5 19 5 83 5 2 9 2 9 OMRON ...
Page 323: ...302 Troubleshooting by Unit Section 9 5 ...
Page 351: ...330 Explicit Messages Appendix A ...
Page 355: ...334 Power Consumption and Weight Tables Appendix C ...
Page 357: ...336 I O Current Consumption Table Appendix D ...
Page 365: ...344 Revision History ...