![background image](http://html1.mh-extra.com/html/omron/cp1h-cpu-units-programming-05-2007/cp1h-cpu-units-programming-05-2007_operation-manual_742081122.webp)
88
CPU Unit Operating Modes
Section 2-5
2-5-3
Operating Mode Changes and I/O Memory
Operating Mode Changes and I/O Memory
Note
1.
The following processing is performed if the I/O Memory Hold Bit is ON.
Outputs from Output Units will be turned OFF when operation stops even
if I/O bit status is held in the CPU Unit.
2.
The cycle time will increase by approximately 10 ms when the operating
mode is changed from MONITOR to RUN mode. This will not, however,
cause an error for exceeding the maximum cycle time limit.
Note
Refer to
SECTION 4 I/O Memory Allocation
.
2-5-4
Startup Mode Setting
This setting in the PLC Setup determines the operating mode that will be used
by the CPU Unit when the power supply is turned ON.
PLC Setup
Mode Changes
Non-holding areas
Holding Areas
• I/O bits
• Data Link bits
• CPU Bus Unit bits
• Special I/O Unit bits
• Work bits
• Timer PV/Completion Flags
• Index Registers
• Data Registers
• Task Flags
Auxiliary Area bits/words are holding or
non-holding depending on the address.
• HR Area
• DM Area
• Counter PV and Completion Flags
Auxiliary Area bits/words are holding or
non-holding depending on the address.
RUN or MONITOR to PROGRAM Cleared (See note 1.)
Held
PROGRAM to RUN or MONITOR Cleared (See note 1.)
Held
RUN to MONITOR or
MONITOR to RUN
Held (See note 2.)
Held
I/O Memory
Hold Bit status
(A500.12)
I/O Memory
Output bits allocated to Output Units
Mode changed
between
PROGRAM
and RUN/
MONITOR
Operation stopped
Mode changed
between
PROGRAM
and RUN/
MONITOR
Operation stopped
Fatal error
other than
FALS
FALS
executed
Fatal error
other than
FALS
FALS
executed
OFF
Cleared
Cleared
Held
OFF
OFF
OFF
ON
Held
Held
Held
Held
OFF
OFF
Power turned ON.
Operating mode
Name
Description
Settings
Default
Startup Mode
Specifies the
CPU Unit oper-
ating mode at
startup
• Program
• Monitor
• Run
• Use programming console
Use program-
ming console
Summary of Contents for CP1H CPU UNITS - PROGRAMMING 05-2007
Page 2: ......
Page 3: ...CP1H X40D CP1H XA40D CP1H Y20DT D CP1H CPU Unit Operation Manual Revised March 2009...
Page 4: ...iv...
Page 10: ...x...
Page 18: ...xviii...
Page 22: ...xxii...
Page 34: ...xxxiv Conformance to EC Directives 6...
Page 174: ...140 CP series Expansion I O Unit Wiring Section 3 6...
Page 370: ...336 Analog I O XA CPU Units Section 5 5...
Page 552: ...518 Trouble Shooting Section 8 7...
Page 595: ...561 Sample Application Section 9 12 Network Settings Network Tab Network Settings Driver Tab...
Page 598: ...564 Sample Application Section 9 12...
Page 642: ...608 Standard Models Appendix A...
Page 652: ...618 Dimensions Diagrams Appendix B...
Page 745: ...711 Connections to Serial Communications Option Boards Appendix F Connecting to Unit...
Page 746: ...712 Connections to Serial Communications Option Boards Appendix F...
Page 776: ...742 PLC Setup Appendix G...
Page 778: ...744 Specifications for External Power Supply Expansion Appendix H...
Page 786: ...752 Revision History...