Omron NJ101-10 Series, User Manual

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5
Click the Stop Button to stop monitoring packets.
Saving Packet Data

Reading Data from the Sysmac Studio
After you stop packet monitoring, you can use the Sysmac Studio to read the packet data and save
it in a file.
1
Stop monitoring packets.
2
Click the Save Packet Data Button to save the packet data.
The Save Dialog Box is displayed.
3
Input a file name, and then click the Save Button.
A TCPDump packet data file with a .cap extension is saved.

Saving to an SD Memory Card from Memory in the CPU Unit
Stop monitoring packets, and then execute the EC_SaveMon (Save EtherCAT Packets) instruction
to save a given quantity of collected packet data in memory in the CPU Unit.
Then, execute the EC_CopyMon (Transfer EtherCAT Packets) instruction to save the packet data
that was saved in the CPU Unit to a file on an SD Memory Card inserted into the CPU Unit.
You can specify the name of the file that is saved in the SD Memory Card. The number of files is
limited only by the space that is available on the SD Memory Card.
Additional Information
• Packet data in the CPU Unit's memory is not retained when the power is interrupted.
• Packet data cannot be saved while packets are being monitored.
• Packet monitoring cannot be started while saving packet data.
• If an SD Memory Card is not inserted and you execute the instruction to copy the data to the
SD Memory Card, then an error is returned. If there is no SD Memory Card, only the one file
in the CPU Unit's memory can be read to the Sysmac Studio.
• Packet monitoring starts when the power is turned ON.
Appendices
A-9
NJ/NX-series CPU Unit Built-in EtherCAT Port User's Manual (W505)
A-2 Monitoring Packets
A