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136
Writing Data with IOWR
Section 5-4
Method
Outline
Characteristics
Method 1 The transferred
data is immedi-
ately written to
the data area.
The data specified with the IOWR instruction is written to the data area within one cycle.
The number of items (words) that can be transferred with one IOWR instruction is limited as
follows:
When changing position data and executing memory operation, it is possible to transfer the
data to the PCU and send the instruction to start operation within one cycle.
Method 2 The data is writ-
ten to the data
area only after it
has all been
received in a
receive buffer.
Up to 128 words of data can be transferred in one operation. If the number of words to be
transferred is greater than the limits for method 1 listed above, method 2 will be used auto-
matically.
With this method, because data is written to the data area only after it has all been received
in the receive buffer, if the IOWR instruction is used more than once in the ladder program,
it may take 2 or more cycles for transfer to be completed. (See the following example.) This
is different from method 1, where data transfer is completed within one cycle.
If the IOWR instruction is used only once in the ladder program, it is possible to transfer the
data to the PCU and send the instruction to start operation within one cycle, in the same
way as method 1.
Data name
Number/Size
Parameter
I/O setting
1 (1 word)
Operation mode selection
1 (1 word)
Maximum speed
1 (2 words)
Initial speed
1 (2 words)
Origin search high speed/proximity speed
2 (4 words)
Origin compensation
1 (2 words)
Backlash compensation
1 (1 word)
Backlash compensation speed
1 (2 words)
Acceleration/deceleration curve
1 (1 word)
Origin search acceleration time
1 (2 words)
Origin search deceleration time
1 (2 words)
Positioning monitor time
1 (1 word)
CCW software limit
1 (2 words)
CW software limit
1 (2 words)
Pulse rate numerator
1 (1 word)
Pulse rate denominator
1 (1 word)
Initial one pulse speed
1 (1 word)
Data
Sequence data
1 (3 words)
Speed data
6 (12 words)
Position data
6 (12 words)
Acceleration times
12 (12 words)
Deceleration times
12 (12 words)
Dwell times
12 (12 words)
Zones
3 (12 words)
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 ...
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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 ...