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5.If computer link protocol transmission fails a. Host computer side (main port)
START
Is the transmission destination IP address set to that of the slave Ethernet Port?
Yes
Is the transmission destination message transmission UDP port number correct?
Yes
Did the computer link protocol
return without errors?
Yes
Does a response come back if a ping is issued to the slave Ethernet Port?
Yes
Check the network verification items, i.e., the items unrelated to the Ethernet Port.
No | Verify the slave Ethernet Port transmission | |
| destination IP address. | |
|
| |
|
| |
| Verify the slave Ethernet Port message | |
| transmission UDP port number. | |
No | Supplement: | |
| Remember that there are separate send and | |
| receive ports that each have their own | |
| message transmission UDP port number. | |
No |
| |
| ||
Check the computer link protocol format. | ||
| ||
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| |
|
| |
| 1.Recheck the slave port IP address and | |
No | message transmission UDP port numbers. | |
2.Verify that there is no router on the network. | ||
| ||
| 3.Check the network verification items. | |
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END