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141
Overview of I/O Memory Area
Section 4-1
Note
1.
H512 to H1535 are used as a Function Block Holding Area. These words
can be used only for function block instances (internally allocated variable
area).
2.
Bits can be manipulated using TST(350), TSTN(351), SET, SETB(532),
RSTB(533), and OUTB(534).
3.
Index registers and data registers can be used either individually by task
or they can be shared by all the tasks (the default is individual use by task).
4.
Timer PVs can be refreshed indirectly by force-setting/resetting the Timer
Completion Flags.
5.
Counter PVs can be refreshed indirectly by force-setting/resetting the
Counter Completion Flags.
TR Area
16 bits
TR0 to
TR15
Shared by
all tasks
---
OK
OK
OK
OK
No
No
Data Memory Area
32,768
words
D00000
to
D32767
---
No
(Note
2)
OK
OK
OK
OK
No
Timer Completion Flags
4,096 bits
T0000 to
T4095
---
OK
---
OK
OK
OK
OK
Counter Completion Flags
4,096 bits
C0000 to
C4095
---
OK
---
OK
OK
OK
OK
Timer PVs
4,096
words
T0000 to
T4095
---
---
OK
OK
OK
OK
No
(Note 4)
Counter PVs
4,096
words
C0000 to
C4095
---
---
OK
OK
OK
OK
No
(Note 5)
Task Flag Area
32 bits
TK0 to
TK31
---
OK
---
OK
No
No
No
Index Registers
16 regis-
ters
IR0 to
IR15
Function
separately in
each task
(Note 3)
---
OK
OK
Indirect
address-
ing only
Specific
instruc-
tions only
No
No
Data Registers
16 regis-
ters
DR0 to
DR15
---
No
OK
OK
OK
No
No
Area
Size
Range
Task usage
Allocation
Bit
access
Word
access
Access
Change
from CX-
Programmer
Forcing
bit
status
Read
Write
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...