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Integration in bestehende Systeme
OPC UA
In addition to the classic OPC access via the W&T OPC server, the Web IO can also
be addressed directly via OPC UA.
The device provides OPC UA via a binary TCP protocol.
The preset port of the server service corresponds to the standard port for this appli-
cation: 4840. The connection setup of your client is done accordingly with the call:
opc.tcp//<ip-adresse>:4840
The device provides several authentication methods, with corresponding security
policies. You have the choice between:
• No authentication
No security policy
• Sign
Security policy:
Basic128 - RSA15
Basic265
Basic265-SHA256
AES128-SHA256 RsaOaep
• • Sign & Encrypt
Security policy:
Basic128 - RSA15
Basic265
Basic265-SHA256
AES128-SHA256 RsaOaep
Also configure a UPC UA user name and password. If you select „No authentication“,
this is not necessary.
