Can't connect more than one OPC UA Clients to the BMENUA0100 module via Secure connection

Issue

The BMENUA0100 module can only connect to a single OPC UA Client via Secure Connection (certificate signed encryption). More than one connection cannot be established.

Product Line

BMENUA0100 / BMENUA0100H - OPC UA Embedded Module (Modicon X80 Platform)

Environment

OPC UA communication

Resolution

In Access Control -> User Management of the BMENUA0100 module, the 4 Authentication Roles are:

1) SECADM (admin)

2) OPERATOR

3) ENGINEER

4) INSTALLER (used for firmware updates from the EcoStruxure Automation Device Maintenance tool)

See the "Access Control" section of the "BMENUA0100 OPC UA Embedded Module, Installation and Configuration Guide"

https://www.se.com/us/en/download/document/PHA83350/

If there are MORE THAN ONE Users with the INSTALLER role configured, it causes the BMENUA0100 firmware to reject all but one OPC UA Client.

The firmware only allows one User to have the role of INSTALLER - but this limit is not reflected in the User Interface validation rules of the NUA Webpage.

So as long as you keep only a single user with the INSTALLER role, then you can have up to the maximum 15 simultaneous OPC UA Clients connected via Secure Mode.

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Publicado para: Schneider Electric España