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High-speed Counters
Section 5-2
Encoders with Line Driver Outputs (Conforming to Am26LS31)
5-2-7
Ladder Program Example
Inspecting a Dimension by
Counting Pulse Inputs
• An X CP1H CPU Unit with an AC power supply is used.
• High-speed counter 0 is used.
• When the edge of the workpiece is detected, the counter PV is reset by a
phase-Z pulse.
• The workpiece is passes inspection if the final count is between 30,000
and 30,300, otherwise the workpiece fails.
• If the workpiece passes, output CIO 100.00 is turned ON by an interrupt
and the indicator PL1 is lit. If the workpiece fails, output CIO 100.01 is
turned ON by an interrupt and indicator PL2 is lit.
• The interrupt program is interrupt task 10.
(Differential phase input mode)
Encoder
Example: E6B2-CWZ1X
(line-driver output)
A+
Black
B+
White
Z+
Orange
5 VDC
Brown
0 V
Blue
A
−
Black
(stripped)
B
−
White
(stripped)
Z
−
Orange
(stripped)
5-VDC power supply
+5 V
0 V
Y CPU Unit
(High-speed counter 0: Phase A, LD+)
(High-speed counter 0: Phase A, LD-)
(High-speed counter 0: Phase B, LD+)
(High-speed counter 0: Phase B, LD-)
(High-speed counter 0: Phase Z, LD+)
(High-speed counter 0: Phase Z, LD-)
A0+
A0-
B0+
B0-
Z0+
Z0-
A0+
A0
−
B0+
B0
−
Z0+
Z0
−
Encoder
Power supply
Shielded twisted-pair cable
Z
−
Z+
B+
A+
B
−
A
−
CPU Unit
Summary of Contents for CP1H CPU UNITS - PROGRAMMING 05-2007
Page 2: ......
Page 3: ...CP1H X40D CP1H XA40D CP1H Y20DT D CP1H CPU Unit Operation Manual Revised March 2009...
Page 4: ...iv...
Page 10: ...x...
Page 18: ...xviii...
Page 22: ...xxii...
Page 34: ...xxxiv Conformance to EC Directives 6...
Page 174: ...140 CP series Expansion I O Unit Wiring Section 3 6...
Page 370: ...336 Analog I O XA CPU Units Section 5 5...
Page 552: ...518 Trouble Shooting Section 8 7...
Page 595: ...561 Sample Application Section 9 12 Network Settings Network Tab Network Settings Driver Tab...
Page 598: ...564 Sample Application Section 9 12...
Page 642: ...608 Standard Models Appendix A...
Page 652: ...618 Dimensions Diagrams Appendix B...
Page 745: ...711 Connections to Serial Communications Option Boards Appendix F Connecting to Unit...
Page 746: ...712 Connections to Serial Communications Option Boards Appendix F...
Page 776: ...742 PLC Setup Appendix G...
Page 778: ...744 Specifications for External Power Supply Expansion Appendix H...
Page 786: ...752 Revision History...