This chapter provides you with tips on how to locate and troubleshoot problems.
Sending emails
Diagnostics information is displayed on LOGO! Base module through menu: Diagnostics → Email → Mail Logs. You can refer to the following table to troubleshoot the error cause and fix the error through corresponding solution.
|
Diagnostics |
Possible cause |
Possible remedy |
|---|---|---|
|
Mail busy |
Emails are sent too frequently. When the server is sending an email, another email is triggered to send. |
As you cannot change the email sending frequency, modify the email sending trigger event. |
|
Time out |
|
|
|
Failed to parse DNS |
|
|
|
Failed to login |
The login account or login password is incorrect in the SMTP settings. |
Check the login account or password in SMTP settings. Additional application code is required for certain SMTP server login. Refer to the user manual of specified email server for detailed information. |
|
Receiver error |
|
|
|
Net error |
The network is disconnected when the server is sending the email. |
Check your network connection. |
|
No configuration |
SMTP server is not configured in LSC. |
Configure SMTP in LSC. Refer to Tools -> Transfer -> Email Settings. |
|
Server error |
|
Check if error occurs on the SMTP server or the SMTP server login email account. |
|
Failed to verify certificate |
The SMTP server certificate is invalid. |
|
Cloud connection
Diagnostics information is displayed on LOGO! Base module through menu: Diagnostics → Cloud → Connection Status. You can refer to the following table to troubleshoot the error cause and possible solution.
|
Diagnostics |
Possible cause |
Possible remedy |
|---|---|---|
|
Failed to parse DNS |
|
|
|
Server connection timeout |
|
|
|
Server connection error |
Error occurs when LOGO! is establishing TCP/TLS connection with server. |
Check connection parameters, for example, port, authentication mode, key, certificate. |
|
No reply from MQTT broker |
Server's MQTT service is unavailable. |
Contact server technical support. |
|
Failed to send data to MQTT broker |
Cloud connection with MQTT broker is interrupted when LOGO! is sending data. |
Check your network connection. |
|
Failed to receive data from MQTT broker |
|
|
|
Unacceptable protocol version |
The server does not support the level of the MQTT protocol requested by the client. |
Check if the server supports MQTT 3.1/3.1.1 protocol. |
|
Identifier rejected |
The client identifier is UTF-8 which is not supported by the server. |
Contact server technical support. |
|
Server unavailable |
The network is connected but MQTT services is unavailable. |
Contact server technical support. |
|
Bad user name or password |
The data in the user name or password is malformed. |
|
|
Not authorized |
The client is not authorized to connect. |
Check if user name and password are provided. |
|
Data from MQTT broker is too long |
Data received from the server is malformed or too long. |
|