M580 password encryption

[gnochon 0]

Good morning everybody,

 

I am working on a project using Schneider M580 PLC. The PLC is connected on an Ethernet Switch and all connection from Unity to the PLC is made through the Ethernet network. My customer is asking me to demonstrate that the PLC connexion password traveling on the network is encrypted. Would any one of you be able to guide me to a document where this is explicitely said. I have being searching Unity help file, the M580 reference Manual, The M580 Planning guide, Modicon cybersecurity reference manual, etc and all I could find is a mention that password is encrypted in the programm file. Close but not what I need to prove to the customer.

 

Kind regards,

[Quant 21]

the connection between UnityPro Software and M580 using Modbus/TCP  Function Code 90. FC90 is private protocol, which description is not available for public use.