![background image](http://html1.mh-extra.com/html/omron/cj1w-c113-rev-02-2008/cj1w-c113-rev-02-2008_operation-manual_742339168.webp)
141
Reading Data with IORD
Section 5-5
5-5-5
Flags
When data is transferred using IORD, the Error Flag (word n+8, bit 12), the
ER Flag and the Equals Flag can be used to check whether the transfer has
been completed successfully. If the Error Flag (word n+8, bit 12) is ON, an
error code will be output to n+10 in the operating memory area. Check this
error code to determine the cause of the error and correct it.
Flag
ON Condition
OFF Condition
ER
• The number of transfer words set
in W is outside the range 0001 to
0080 Hex.
• The unit number set in W is out-
side the range 0000 to 005F Hex.
• A Special I/O Unit that is not com-
patible with the IORD instruction
has been specified.
• A Special I/O Unit for which a set-
ting error has been made or an
error is being generated has been
specified.
Anything else.
=
The transfer has been completed
without error.
• The address set in C, or the area
specified with this address and
the number of transfer words set-
ting, corresponds to only some,
and not all, of the words used to
store an item of data. For exam-
ple, the Equals Flag would turn
ON if the destination address set
for a speed, which is stored in 2
words, was set to an address that
corresponded to only the second
word.
• The address set in C, or the area
specified with this address and
the number of transfer words set-
ting, is outside the range of PCU
addresses.
• The number of transfer words is
set to 0.
• Another write process is being
executed.
• Data is being saved to flash
memory.
(Data is being saved for a SAVE
DATA bit or data is being saved
from the CX-Position.)
• The has just been turned ON or
restarted and is still performing
initial processing.
Содержание CJ1W-C113 - REV 02-2008
Страница 1: ...Position Control Units Cat No W397 E1 07 SYSMAC CJ1W NC113 213 413 133 233 433 OPERATION MANUAL ...
Страница 2: ...CJ1W NC113 213 413 133 233 433 Position Control Units Operation Manual Revised February 2008 ...
Страница 3: ...iv ...
Страница 13: ...xiv ...
Страница 15: ...xvi ...
Страница 19: ...xx ...
Страница 27: ...xxviii Conformance to EC Directives 6 ...
Страница 43: ...16 Control System Principles Section 1 7 ...
Страница 47: ...20 Basic Procedures Section 2 ...
Страница 139: ...112 Examples of Parameter Settings Section 4 9 ...
Страница 173: ...146 Transferring Data with CX Position Section 5 7 ...
Страница 223: ...196 Sample Program Section 7 7 ...
Страница 259: ...232 Sample Program Section 8 10 ...
Страница 293: ...266 Easy Backup Function Ver 2 0 or later Section 9 11 ...
Страница 369: ...342 Reading Error Information with CX Position Section 11 8 ...
Страница 385: ...358 Common Parameter Area Appendix C ...
Страница 399: ...372 Parameter Coding Sheets Appendix E ...