Manual

10-13
IM 04L21B01-01EN
Troubleshooting
3
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10
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14
App
Index
• Maintenance and Test Communication Command Errors
An English error message is returned via the communication interface. These messages
are not displayed on the FX.
Code Message
390 Command error.
391 Delimiter error.
392 Parameter error.
393 No permission.
394 No such connection.
395 Use ‘quit’ to close this connection.
396 Failed to disconnect.
397 No TCP control block.
398 Format error.
• Other Communication Errors
An English error message is returned via the communication interface. These messages
are not displayed on the FX.
Code Message
400 Input username.
Enter the name of a user that is registered on the FX and that is allowed to log into the FX through communication
commands.
401 Input password.
Enter the password.
402 Select username from ‘admin’ or ‘user’.
Select “admin” or “user” to specify the user level to connect to.
403 Login incorrect, try again!
The login failed. Enter the information again, starting with the user name.
404 No more login at the specified level is acceptable.
Connecting would cause the maximum number of simultaneous connections (administrator: 1, normal user: 2 to be
exceeded. Connect to a different level, or exit by entering “quit.”
420 Connection has been lost.
The connection has been lost.
421 The number of simultaneous connection has been exceeded.
The maximum number of simultaneous connections has been reached, so no further connections can be made.
422 Communication has timed-out.
Communication timed out so the connection was closed.
10.1 A List of Messages