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507
Auxiliary Area Allocations by Function
Appendix C
Built-in Analog Inputs (XA CPU Units)
Built-in Outputs
Pulse Outputs 0 to 3
Name
Description
Read/Write
Updated
High-speed Counter PV
Contains the PV of the high-speed counter.
Read-only
• Cleared when power is turned ON.
• Cleared when operation starts.
• Updated each cycle during oversee-
ing process.
• Updated when PRV(881) instruction
is executed for the corresponding
counter.
High-speed
Counter Range
Comparison
Condition Met
Flags
Range 1
These flags indicate whether the PV is within the
specified ranges when the high-speed counter is
being operated in range-comparison mode.
OFF: PV not in range
ON: PV in range
Read-only
• Cleared when power is turned ON.
• Cleared when operation starts.
• Cleared when range comparison
table is registered.
• Updated each cycle during oversee-
ing process.
• Updated when PRV(881) instruction
is executed to read range compari-
son results.
Range 2
Range 3
Range 4
Range 5
Range 6
Range 7
Range 8
High-speed Counter Com-
parison In-progress Flag
This flag indicates whether a comparison operation
is being executed for the high-speed counter.
OFF: Stopped.
ON: Being executed.
Read-only
• Cleared when power is turned ON.
• Cleared when operation starts.
• Updated when comparison operation
starts or stops.
High-speed Counter Over-
flow/Underflow Flag
This flag indicates when an overflow or underflow
has occurred in the high-speed counter PV. (Used
with the linear mode counting range only.)
OFF: Normal
ON: Overflow or underflow
Read-only
• Cleared when power is turned ON.
• Cleared when operation starts.
• Cleared when the PV is changed.
• Updated when an overflow or under-
flow occurs.
High-speed Counter
Count Direction
This flag indicates whether the high-speed counter
is currently being incremented or decremented. The
counter PV for the current cycle is compared with
the PLC in last cycle to determine the direction.
OFF: Decrementing
ON: Incrementing
Read-only
• Setting used for high-speed counter,
valid during counter operation.
High-speed Counter
Reset Bit
When the reset method is set to Phase-Z
Software reset, the corresponding high-speed
counter's PV will be reset if the phase-Z signal is
received while this bit is ON.
When the reset method is set to a software reset,
the corresponding high-speed counter's PV will be
reset in the cycle when this bit goes ON.
Read/Write
• Cleared when power is turned ON.
High-speed Counter Gate
Bit
When a counter's Gate Bit is ON, the counter's PV
will not be changed even if pulse inputs are received
for the counter.
When the bit is turned OFF again, counting will
restart and the high-speed counter's PV will be
updated.
When the reset method is set to Phase-Z
Software reset, the Gate Bit is disabled while the
corresponding Reset Bit is ON.
Read/Write
• Cleared when power is turned ON.
Name
Address
Description
Read/Write
Updated
Built-in Analog Input
Error Details
A434.00 to
A434.03
ON when an error occurs in a built-in analog input.
A434.00: Analog Input 0 Open-circuit Error Flag
A434.01: Analog Input 1 Open-circuit Error Flag
A434.02: Analog Input 2 Open-circuit Error Flag
A434.03: Analog Input 3 Open-circuit Error Flag
Read-only
When open-circuit is
detected
Analog Initialization
Completed Flag
A434.04
ON while the built-in analog I/O is being initialized.
Read-only
When initialization is
completed
Item
Pulse output
0
Pulse output
1
Pulse output
2
Pulse output
3
Pulse Output PV
Leftmost 4 digits
A277
A279
A323
A325
Rightmost 4 digits
A276
A278
A322
A324
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...