Mitsubishi Electric MELSEC iQ-F Series Quick Start Manual page 39

5.
Download the server certificate (sf-class2-root.crt) from AWS.
The certificate can be downloaded from the following (as of the publication of this manual).
https://aws.amazon.com/blogs/security/how-to-prepare-for-aws-move-to-its-own-certificate-authority/
?nc1=h_ls
Certificates have expiration dates. For the latest information, check the website of AWS.
4
4 CONFIGURING SERVER (MQTT BROKER) CONNECTION
38
4.2 Configuring Settings with Certificate Configuration Tool for FX5-ENET