How can the pop-up message regarding certificate expiration be resolved when using a M241/M251 logic controller for the first time?

When connecting to a M241/M251 logic controller from Machine Expert for the first time, customers could face a pop-up message regarding the certificate expiration.

Due to a random RTC, the certificate’s validity period has already elapsed at the first connection causing the following pop-up message:

To fix this issue, it is needed to:

• Update the RTC (Real-Time Clock) by installing the coin battery, if this has not already been completed:

• Open the “Security Screen” and go to “Own Certificates”, refresh and delete the certificate in “Yellow” colour:

• Click “yes” and then power cycle the controller:

• After all, the new certificate will be generated:

Released for: Schneider Electric Macedonia