Omron C200HW, Operation Manual

Page: 256 / 285

Appendix A
Data Calculation Standards
247
Data Writing Time
Amount of
data to be
NC113 NC213 NC413
data to be
written
IOWR WRITE DATA IOWR WRITE DATA IOWR WRITE DATA
3 words 2.4 ms 28 ms 2.4 ms 33 ms 3.7 ms 49 ms
15 words 6.1 ms 30 ms 6.1 ms 33 ms 9.8 ms 47 ms
30 words 11 ms 32 ms 11 ms 35 ms 17 ms 47 ms
126 words 41 ms --- 41 ms --- 62 ms ---
300 words --- 133 ms --- 122 ms --- 142 ms
672 words --- 301 ms --- 268 ms --- 293 ms
WRITE DATA/READ DATA
IORD/IOWR Execution
Data Transferring Flag
= (25506) Bit
Data transfer time
The average time required for saving data is approximately three seconds, but it may take as long as 33 seconds in
some cases.
If the time required for saving data exceeds 33 seconds, however, a flash memory error (error code: 9300) will
occur and the data save will be interrupted.
SAVE DATA
Data Transferring Flag
Data saving time
Effect on the Programmable Controller Scan
When a single Position Control Unit is mounted, the PC’s cycle time increases as follows:
Operation NC113 NC213 NC413
Mounting 2.6 ms 2.9 ms 4.5 ms
Data writing 2.9 ms 3.2 ms 5.5 ms
Data reading 2.9 ms 3.2 ms 5.5 ms
Minimum Operation Time
The minimum operation time for the Position Control Unit is 10 ms. With memory operation, when a sequence with
a “continuous” completion code is executed and the positioning time for that sequence is shortened according to
the amount of movement and the target speed, the operation time required for the continuous completion cannot
be assured and positioning will be executed as if the completion code were “automatic.” When using a sequence
with a “continuous” completion code, be sure to adjust the target speed and target position so that the operation
time will be equal to or greater than the minimum operation time.