OpcCmd uaClient command tips and tricks: Difference between revisions

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: <code>OpcCmd uaClient read opc.tcp://pc-zbynekz-5:62541/Quickstarts/ReferenceServer --EndpointSecurityPolicyDisplayName ECC_nistP256 i=2255</code>
: <code>OpcCmd uaClient read opc.tcp://pc-zbynekz-5:62541/Quickstarts/ReferenceServer --EndpointSecurityPolicyDisplayName ECC_nistP256 i=2255</code>
: For other ECC policies, use e.g. ECC_nistP384, ECC_brainpoolP256r1 or ECC_brainpoolP384r1.
: For other ECC policies, use e.g. ECC_nistP384, ECC_brainpoolP256r1 or ECC_brainpoolP384r1.
; How can I check which message security mode, or security policy, is actually being used?
: Start the '''uaClient''' command as follows:
: <code>!option AmbientOutput [Boolean]True<br/>uaclient --ConnectionMonitoring</code>
: Then, proceed as normally. There will be '''ServerConditionChanged''' events displayed, and in their '''Connected''' state, they will show the communication profile (in angle brackets) being used, e.g.:
: <code>[1] IEasyUAClientConnectionMonitoring.ServerConditionChanged: "opc.tcp://localhost:48040 - [SignAndEncrypt:ECC-nistP256:Binary]" Connected; Success</code>
: In this example, the message security mode is '''SignAndEncrypt''', the security policy name is '''ECC-nistP256''', and the data encoding name is '''Binary'''.

Revision as of 17:00, 8 December 2024

How do I specify a connection using ECC security policy?
Example:
OpcCmd uaClient read opc.tcp://pc-zbynekz-5:62541/Quickstarts/ReferenceServer --EndpointSecurityPolicyDisplayName ECC_nistP256 i=2255
For other ECC policies, use e.g. ECC_nistP384, ECC_brainpoolP256r1 or ECC_brainpoolP384r1.
How can I check which message security mode, or security policy, is actually being used?
Start the uaClient command as follows:
!option AmbientOutput [Boolean]True
uaclient --ConnectionMonitoring
Then, proceed as normally. There will be ServerConditionChanged events displayed, and in their Connected state, they will show the communication profile (in angle brackets) being used, e.g.:
[1] IEasyUAClientConnectionMonitoring.ServerConditionChanged: "opc.tcp://localhost:48040 - [SignAndEncrypt:ECC-nistP256:Binary]" Connected; Success
In this example, the message security mode is SignAndEncrypt, the security policy name is ECC-nistP256, and the data encoding name is Binary.