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
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...