Automationdirect.com HX-ECOM Series - Change Protocol; Ethernet Stats

Ethernet Communications Modules, 3rd Edition, Rev. D
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Chapter 7: Maintenance and Troubleshooting
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Change Protocol
If you are experiencing a problem communicating from
your PC to a module that does not appear on the list of
active modules, try changing the protocol and clicking on
Scan Network. You may be able to link to your module
with the other protocol.
If you are not sure which protocol you have loaded on
your PC, refer to Chapter 3, as well as your Windows
documentation. This protocol selection is only for PC-to-
PLC communications and has no effect on PLC-to-PLC
communications.
Ethernet Stats
If you are able to see the problem module on the list of modules currently active on the
network, you can select the module to see the Ethernet Stats for that module. Select the module
by clicking on the Ethernet (MAC) Address in the Module box.
To begin a new statistical record, click the Clear Stats button.
The diagnostic information available in the Ethernet Stats box is:
• Missed Frames - frames lost due to unavailability of buffer space.
• TX Collisions - detected when
• RXD+ and RXD- become active during a data transmission. Two
devices are trying to communicate at the same time.
• Lost Packets - packets that overflow the queue.
• Bad Packets - packets that fit the Ethernet standard but are
not in the right format for the ECOM module.
• Unknown Type - a foreign command was received and could not be interpreted.
This will probably happen only during software driver development.
• Send Errors - the Ethernet standard number of retries were attempted for a transmission.