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216
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 - 05-2006
Page 2: ...CP1H X40D CP1H XA40D CP1H Y20DT D CP1H CPU Unit Operation Manual Revised May 2006...
Page 3: ...iv...
Page 11: ...xii TABLE OF CONTENTS...
Page 15: ...xvi...
Page 19: ...xx...
Page 31: ...xxxii Conformance to EC Directives 6...
Page 71: ...40 Function Blocks Section 1 5...
Page 133: ...102 Computing the Cycle Time Section 2 7...
Page 169: ...138 CPM1A Expansion I O Unit Wiring Section 3 6...
Page 411: ...380 Clock Section 6 8...
Page 519: ...488 Replacing User serviceable Parts Section 10 2...
Page 527: ...496 Standard Models Appendix A...
Page 535: ...504 Dimensions Diagrams Appendix B...
Page 628: ...597 Connections to Serial Communications Option Boards Appendix F Connecting to Unit...
Page 629: ...598 Connections to Serial Communications Option Boards Appendix F...
Page 659: ...628 PLC Setup Appendix G...
Page 665: ...634 Index work words 159 write protection 370...
Page 667: ...636 Revision History...