Omron NX-ECC201 - Page 275

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12 Communications Performance
NX-series EtherCAT Coupler Unit User’s Manual (W519)
12-1 Performance of Process Data Communications
12
12-1-2 I/O Response Times for Free-Run Refreshing
 Calculating the I/O Response Times
The I/O response times are as follows based on the calculation results for the elements.
Formula:
Maximum I/O response time = Tcycle × 2 + Edelay + Extj + T#1-Free_I/OCycle × 2
+ T#1-InTrans + T#1-OutTrans + Tnx-InProc × 2
+ Tnx-OutProc × 2 + Tnx-Indelay + Tnx-Outdelay
= 500 × 2 + 7 + 100 + 379.64 × 2 + 156.12 + 47.38
+ 0.00 × 2 + 0.00 × 2 + 0.10 + 0.30
= 2070.18
(Unit: μs)
Formula:
Minimum I/O response time = Tcycle + Edelay + Extj + T#1-InTrans + T#1-OutTrans
+ Tnx-InProc + Tnx-OutProc + Tnx-Indelay
+ Tnx-Outdelay
= 500 + 7 + 100 + 156.12 + 47.38 + 0.00 + 0.00 + 0.10 + 0.30
= 810.9
(Unit: μs)