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Pulse Outputs
Section 5-3
Pulse Output Modes
There are two pulse output modes. In independent mode the number of out-
put pulses is specified and in continuous mode the number of output pulses is
not specified.
Frequency acceleration and decel-
eration rates
Set in 1 Hz units for acceleration/deceleration rates from 1 Hz to 65,635 Hz (every 4
ms). The acceleration and deceleration rates can be set independently only with
PLS2(887).
Changing SVs during instruction
execution
The target frequency, acceleration/deceleration rate, and target position can be
changed.
Duty factor
Fixed at 50%
Pulse output method
CW/CCW inputs or Pulse + direction inputs
The method is selected with an instruction operand. The same method must be used
for pulse outputs 0 and 1.
Number of output pulses
Relative coordinates: 00000000 to 7FFFFFFF hex
(Each direction accelerating or decelerating: 2,147,483,647)
Absolute coordinates: 80000000 to 7FFFFFFF hex
(
−
2147483648 to 2147483647)
Pulse output PV's relative/absolute
coordinate specification
Absolute coordinates are specified automatically when the origin location has been
determined by setting the pulse output PV with INI(880) or performing an origin
search with ORG(889). Relative coordinates are used when the origin location is
undetermined.
Relative pulse specification/
Absolute pulse specification
The pulse type can be specified with an operand in PULS(886) or PLS2(887).
Note The absolute pulse specification can be used when absolute coordinates are specified for
the pulse output PV, i.e. the origin location has been determined.
The absolute pulse specification cannot be used when relative coordinates are specified,
i.e. the origin location is undetermined. An instruction error will occur.
Pulse output PV's storage location The following Auxiliary Area words contain the pulse output PVs:
Pulse output 0: A277 (leftmost 4 digits) and A276 (rightmost 4 digits)
Pulse output 1: A279 (leftmost 4 digits) and A278 (rightmost 4 digits)
Pulse output 2: A323 (leftmost 4 digits) and A322 (rightmost 4 digits)
Pulse output 3: A325 (leftmost 4 digits) and A324 (rightmost 4 digits)
The PVs are refreshed during regular I/O refreshing.
Acceleration/deceleration curve
specification
Trapezoidal or S-curve acceleration/deceleration
Item
Specifications
Mode
Description
Independent mode
This mode is used for positioning.
Operation stops automatically when the preset num-
ber of pulses has been output. It is also possible to
stop the pulse output early with INI(880).
Continuous mode
This mode is used for speed control.
The pulse output will continue until it is stopped by
executing another instruction or switching the PLC to
PROGRAM mode.
Содержание CP1H-CPU - 05-2006
Страница 1: ...OPERATION MANUAL CP1H CPU Unit SYSMAC CP Series CP1H X40D CP1H XA40D CP1H Y20DT D Cat No W450 E1 02...
Страница 2: ...CP1H X40D CP1H XA40D CP1H Y20DT D CP1H CPU Unit Operation Manual Revised May 2006...
Страница 3: ...iv...
Страница 11: ...xii TABLE OF CONTENTS...
Страница 15: ...xvi...
Страница 19: ...xx...
Страница 31: ...xxxii Conformance to EC Directives 6...
Страница 71: ...40 Function Blocks Section 1 5...
Страница 133: ...102 Computing the Cycle Time Section 2 7...
Страница 169: ...138 CPM1A Expansion I O Unit Wiring Section 3 6...
Страница 411: ...380 Clock Section 6 8...
Страница 519: ...488 Replacing User serviceable Parts Section 10 2...
Страница 527: ...496 Standard Models Appendix A...
Страница 535: ...504 Dimensions Diagrams Appendix B...
Страница 628: ...597 Connections to Serial Communications Option Boards Appendix F Connecting to Unit...
Страница 629: ...598 Connections to Serial Communications Option Boards Appendix F...
Страница 659: ...628 PLC Setup Appendix G...
Страница 665: ...634 Index work words 159 write protection 370...
Страница 667: ...636 Revision History...