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373
Battery-free Operation
Section 6-5
In that case it is necessary to set the required values in the ladder program. It
is also possible to save to the built-in flash memory in advance the DM initial
values that are to be set for the DM on RAM at startup.
6-5-2
Using Battery-free Operation
Precautions when
Creating Programs
for Battery-free
Operation
Be careful of the following points, and create programs for which it will not be
a problem even if the correct I/O memory values are not held.
• For unstable parts of I/O memory, include programming at the start of
operation to set required data.
• When battery-free operation is used, the Output OFF Flag (A500.15) in
the Auxiliary Area becomes unstable. When the Output OFF Flag turns
ON, all outputs turn OFF, so include the following program for clearing the
Output OFF Flag at the start of operation.
• Do not reference the clock function, (the clock data in words A351 to A354
of the Auxiliary Area, or the various kinds of time data).
Saving DM Initial
Values (Only when
Required)
Use the following procedure to save to the built-in flash memory the DM initial
values that are to be set at startup.
1,2,3...
1.
First set in the DM Area the data that is to be set as initial values at startup.
2.
Execute a backup to flash memory from the CX-Programmer's Memory
Cassette Transfer/Data Memory Backup Dialog Box.
The procedure is as follows:
a.
Select
PLC
-
Edit
-
Memory Cassette/DM
.
The following Memory Cassette Transfer/DM Backup Dialog Box will
be displayed.
RSET
A500.15
A200.11
First Cycle Flag
Содержание CP1L-L14D Series
Страница 2: ...CP1L L14D CP1L L20D CP1L M30D CP1L M40D CP1L CPU Unit Operation Manual Revised June 2007...
Страница 3: ...iv...
Страница 9: ...x...
Страница 13: ...xiv TABLE OF CONTENTS...
Страница 21: ...xxii...
Страница 33: ...xxxiv Conformance to EC Directives 6...
Страница 65: ...32 Function Blocks Section 1 5...
Страница 153: ...120 CP CPM1A series Expansion I O Unit Wiring Section 3 6...
Страница 523: ...490 Troubleshooting Unit Errors Section 9 4...
Страница 531: ...498 Replacing User serviceable Parts Section 10 2...
Страница 563: ...530 Auxiliary Area Allocations by Function Appendix C...
Страница 611: ...578 Auxiliary Area Allocations by Address Appendix D...
Страница 638: ...605 Connections to Serial Communications Option Boards Appendix F Connecting to Unit...
Страница 639: ...606 Connections to Serial Communications Option Boards Appendix F...
Страница 669: ...636 Index...
Страница 671: ...638 Revision History...