Omron 3G3AX-MX2-ECT, User Manual

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Appendices
A-4 EtherCAT Communication Unit USER’S MANUAL (3G3AX-MX2-ECT)
A-2 Communications Response Time
The table below lists the communications response time.

CJ1W-NCx82 Master
* Due to the characteristics of EtherCAT, the result will become the same with any node as long as the
communication cycle is the same.

NJ501-1x00 Master
* Due to the characteristics of EtherCAT, the result will become the same with any node as long as the
communication cycle is the same.
Meaning Performance Conditions
Starting time Approx. 10 to 14 ms Time after the inverter is started from the PLC until the
motor produces output
*
CJ1W-NCx82 When the communication cycle is 250

s
Data transmitting
time Write Approx. 27 ms/pc Time needed to write/read inverter parameters from
the PLC
CJ1W-NCx82 When the communication cycle is 250

s
Read Approx. 24 ms/pc
IO data updating cycle 4 ms or 6 ms Varies depending on the number of allocated PDOs
Meaning Performance Conditions
Starting time Approx. 6 to 10 ms Time after the inverter is started from the PLC until the
motor produces output
*
NJ501-1x00 When the communication cycle is 500

s
Data transmitting
time Write Approx. 7 ms/pc Time needed to write/read inverter parameters from
the PLC
NJ501-1x00 When the communication cycle is 500

s
Read Approx. 6 ms/pc
IO data updating cycle 4 ms or 6 ms Varies depending on the number of allocated PDOs