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554
Auxiliary Area Allocations by Address
Appendix D
Read/Write Area (Set by User)
Addresses
Name
Function
Settings
Status
after
mode
change
Status at
startup
Write
timing
Related
Flags,
Settings
Word
Bits
A500
A500.12 IOM Hold Bit Turn this bit ON to preserve the sta-
tus of the I/O Memory when shifting
from PROGRAM to RUN or MONI-
TOR mode or vice versa. The I/O
Memory includes the CIO Area,
Transition Flags, Timer Flags and
PVs, Index Registers, and Data Reg-
isters.
(If the status of the IOM Hold Bit itself
is preserved in the PLC Setup (IOM
Hold Bit Status), the status of the I/O
Memory Area will be retained when
the PLC is turned ON or power is
interrupted.)
ON: Retained
OFF: Not
retained
Retained
See
Function
column.
See
Function
column.
PLC
Setup
(IOM Hold
Bit Status
setting)
A500.13 Forced Sta-
tus Hold Bit
Turn this bit ON to preserve the sta-
tus of bits that have been force-set or
force-reset when shifting from PRO-
GRAM to MONITOR mode or vice
versa. Bits that have been force-set
or force-reset will always return to
their default status when shifting to
RUN mode.
(If the status of the Forced Status
Hold Bit itself is preserved in the PLC
Setup (Forced Status Hold Bit Sta-
tus), the status of force-set and
force-reset bits will be retained when
the PLC is turned ON or power is
interrupted.)
ON: Retained
OFF: Not
retained
Retained
See
Function
column.
See
Function
column.
PLC
Setup
(Forced
Status
Hold Bit
Status
setting)
A500.14 Error Log
Reset Bit
Turn this bit ON to reset the Error
Log Pointer (A300) to 00.
The contents of the Error Log Area
itself (A100 to A199) are not cleared.
(This bit is automatically reset to 0
after the Error Log Pointer is reset.)
OFF to ON:
Clear
Retained
Cleared
---
A100 to
A199,
A300
A500.15 Output OFF
Bit
Turn this bit ON to turn OFF all out-
puts from the CPU Unit, CPM1A
Units, and Special I/O Units. The INH
indicator on the front of the CPU Unit
will light while this bit is ON.
(The status of the Output OFF Bit is
retained through power interrup-
tions.)
---
Retained
Retained
---
---
A501
A501.00
to
A501.15
CPU Bus
Unit Restart
Bits
Turn the corresponding bit ON to
restart (initialize) the CPU Bus Unit
with the corresponding unit number.
Bits 00 to 15 correspond to unit num-
bers 0 to F.
When a restart bit is turned ON, the
corresponding CPU Bus Unit Initializ-
ing Flag (A302.00 to A302.15) will be
turned ON. Both the restart bit and
initializing flag will be turned OFF
automatically when initialization is
completed.
OFF to ON:
Restart
ON to OFF:
Restart com-
pleted
Turned OFF by
the system
when the Unit
has been
restarted.
Retained
Cleared
---
A302.00
to
A302.15
A502 to
A507
A502.00
to
A507.15
Special I/O
Unit Restart
Bits
Turn the corresponding bit ON to
restart (initialize) the Special I/O Unit
with the corresponding unit number.
Bits A502.00 to A507.15 correspond
to unit numbers 0 to 95.
When a restart bit is turned ON, the
corresponding Special I/O Unit Ini-
tializing Flag (A330.00 to A335.15)
will be turned ON. Both the restart bit
and initializing flag will be turned
OFF automatically when initializa-
tion is completed.
OFF to ON:
Restart
ON to OFF:
Restart com-
pleted
Turned OFF by
the system
when the Unit
has been
restarted.
Retained
Cleared
---
A330.00
to
A335.15
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...