Modicon M262 Error message "The device is not ready for Encrypted Communication" .

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Issue:

When trying to connect using Controller Assistant or Machine Expert logic builder , TM262 is giving "the Device is not ready for encrypted communication" .

Product Line:

M262 Product Line.

Machine Expert Logic Builder .

Please try the below Workarounds to see whether you can connect to Modicon TM262 PLC ,

(1). As per Machine Expert V2.3 Release notes there has been Bug Reported and the workaround is , Deselect the option Encrypted Communication in communication Settings under Device Tree Tab in Controller Selection mode of the Ecostruxure Machine Expert Logic Builder

Machine_Expert_Controller _Communication_Setting

(2). If the issue still persists after De-selecting the Encrypted Communication (as per workaround (1)) then please follow the below notes ,

As per Machine Expert V2.3 Release Notes there has been a Bug reported , Login with encrypted communication to the Modicon M262 controller is not possible after updating the firmware to V2.2.2. Due to a change in certificate handling in EcoStruxure Machine Expert V2.2.2, encrypted communication does not work when you reuse the previous version of the certificate after upgrade to V2.2.2.

Workaround: Delete the existing certificate by using the Security Screen editor or perform an SD card upgrade to V2.2.2.