 Description
Protocol Stack returned ‘Setup Failure’.
Solution
- Reset the power supply of the PLC after making communication setting on the PLC.
If the setting is correct, connection may be possible.
- There might be a port number mismatch between the GP unit and the PLC.
Check each port number on the GP unit and the PLC, and set them correctly.
(When Mitsubishi Electric Q series CPU is connected, the numbers might have been accidentally entered in decimal despite hexadecimal input there.)
- When some port numbers to be used on the PLC are specified, port numbers other than those might have been set. Check the setting of the PLC’s port numbers.
- When [8000] is set for Port No. of PLC in the communication settings on the GP unit, change it to another port number.
As the port number, [8000] on the GP unit is used for transferring screen data to the GP unit, it cannot be set. Change the port number in the communication settings on the PLC accordingly.
- When the IP addresses of the GP unit and the PLC are set to the network addresses with which communication is impossible, re-set them to correct addresses.
| <Example> |
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| GP IP Address: 10.10.10.1 |
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PLC IP Address: 192.168.0.1 |
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If IP addresses on a GP unit and PLC are set as shown above under communication environment that has no gateway address setting and no connection to a router, no communication can be made.
In this case, use the same network address and set the IP addresses as shown below. |
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| GP IP Address: 192.168.0.100 |
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PLC IP Address: 192.168.0.1 |
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| Memo |
The network address part differs depending on a setting of Subnet Mask.
When the Subnet Mask setting is [255.255.255.0], the network address part is [192.168.0] in the example above. |
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