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The following table describes the parameters of the OPC UA Server for
Edge.
Parameter Description Range of values
General communication parameters
Port The port used for communication by OPC UA Valid port
Default:
4840
Server Name The name of the OPC-UA Server (for the client) Name consisting of:
a…z, A…Z, 0-9, space
Global discovery server
URL URL of a Discovery Server within the network to which
the Edge Gateway is connected. If there is a Global
Discovery Server in your network, then specify ist URL in
Parameter
Global discovery server URL . Using this
server, you can then access all OPC UA Servers listed
there. If this is not the case, use the displayed default
address:
opc.tcp://127.0.0.1:4840/
UADiscovery
Valid URL to a Discovery
Server within the network.
Limitations
Max Sessions Maximum number of sessions 1 … 10
Default: 10
Max connections per
endpoint Maximum number of connections per endpoint 1 … 100
Default:100
Max nodes per read Maximum number of nodes per read 1 … 100
Default: 100
Max nodes per browse Maximum number of nodes per browse 1 … 200
Default: 200
Min sampling interval Edge
Server Minimum sampling interval of the Edge Server, specified
in milliseconds >= 1 000
Default: 1000 [ms]
Min sampling interval
passive fieldbus Minimum sampling interval of the passive fieldbus,
specified in milliseconds >= 200
Default: 200 [ms]
Security settings (Security modes)
At least one of these options must be checked. If multiple options are checked, the OPC UA Client may select a suitable
of these options.
None Unsigned communication without encryption Checked / not checked
Sign Signed communication without encryption Checked / not checked
Sign&Encrypt Signed communication with encryption Checked / not checked
Security settings (Security policies)
At least one of these options must be checked. If multiple options are checked, the OPC UA Client may select a suitable
of these options. For maximum security you should choose the security mode
Sign&Encrypt and the security policy
Basic256Sha256 .
For more information, follow the links to the various security policies on https://opcfoundation.org/UA/SecurityPolicy/ .
None No encryption
useful at security mode None und Sign Checked / not checked
Basic128Rsa15 Encryption algorithm Basic128Rsa15 , useful at security
mode Sign&Encrypt
Checked / not checked
Basic256 Encryption algorithm Basic256 , useful at security mode
Sign&Encrypt
Checked / not checked
Basic256Sha256 Encryption algorithm Basic256Sha256 , useful at security
mode Sign&Encrypt
Checked / not checked
Security settings (Access method to OPC UA Server)
Anonymous access Anonymous access to the OPC UA Server (not secure) Checked / not checked
Passive mode of operation
Edge Gateway | NIOT-E-TIB100-GB-RE (Remote)
DOC170501UM04EN | Revision 4 | English | 2018-08 | Released | Public © Hilscher 2017 – 2018