Fragmented messages from SMTP server with no AUTH in the answer cause the runtime to stop responding

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  Summary When using SMTP e-mail with message control the runtime may stop responding or fail to react on user input, when many e-mails are sent. DescriptionWhen using SMTP e-mail with message control the runtime may stop responding or fail to react on ...

• Sending many GSM SMS messages caused high CPU load of the zenon runtime and could cause the zenon runtime to stop responding

  Summary When many GSM SMS messages are sent from the zenon runtime simultaneously, the runtime causes a high CPU load and may stop responding. DescriptionWhen many GSM SMS messages are sent from the zenon runtime simultaneously, the runtime causes a ...

• In rare cases, acknowledged or timed-out messages from Message Control cause the runtime to stop working

  Summary In some cases, an acknowledged message or a message which timed out cause the runtime to stop working. Description In some cases, an acknowledged message or a message which timed out cause the runtime to stop working. Solution An issue was ...

• The OPCUA client driver may cause the runtime to stop responding under specific circumstances

  Summary The OPCUA client driver uses the due time for publish responses (keepalive) to check if the OPCUA server is still responding. Normally if the connection to the OPCUA server is lost, the connection is closed at the TCP level. If however no ...

• SMTP dispatcher closes connection before receiving answer to the EHLO command

  Summary If a server needs longer than 100ms to answer on EHLO or is sending a single line response, Message Control is no longer waiting for supported extensions of the SMTP server and supposes that the SMTP server is not supporting SMTP AUTH. ...