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Writing Data with IOWR
Section 5-4
5-4-5
Precautions when Using IOWR
IOWR is an instruction which transfers all specified data with a single execu-
tion. Therefore, it increases the cycle time for the ladder program by the time
required to transfer the data.
Refer to
Appendix A Performance Characteristics
for details on the times
required for transferring positioning sequences. Use them as reference values
for setting cycle time monitoring time.
When using IOWR, be sure to transfer data in complete units, and do not start
or end transfer in the middle of data. For example, with X-axis sequence #0,
the data unit consists of three words (addresses: 1000 to 1002 Hex). If the
transfer is started or ended part-way through, an IOWR format error (error
code 8701) will be generated.
When transferring the origin search high speed or the origin search proximity
speed, be sure to send both of these items together. If only one of these items
is transferred, an IOWR format error (error code 8701) will be generated.
Up to 128 words of consecutive data can be transferred with the IOWR
instruction. According to the PCU’s internal processing conditions, however,
there area two possible methods with which this data is written to the respec-
tive data area within the PCU. The method that is used will be determined
automatically; it does not have to be specified in the ladder program.
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 ...