Using OpcCmd Utility for Static OPC UA Operations: Difference between revisions
From OPC Labs Knowledge Base
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= Command, Arguments and Options = | = Command, Arguments and Options = | ||
== Command: ua nodeId == | == Command: ua nodeId == | ||
=== Get standard name that corresponds to OPC UA Node ID === | |||
Example: Figure out standard name of a node ID in namespace 0 (reserved by OPC Foundation): | Example: Figure out standard name of a node ID in namespace 0 (reserved by OPC Foundation): | ||
<pre>ua nodeId i=2253</pre> | <pre>ua nodeId i=2253</pre> | ||
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<pre>Standard name: Server | <pre>Standard name: Server | ||
Expanded text: nsu=http://opcfoundation.org/UA/ ;i=2253</pre> | Expanded text: nsu=http://opcfoundation.org/UA/ ;i=2253</pre> | ||
=== Get the OPC UA Node ID that corresponds to a given standard name === | |||
Example: Find out a full node ID from its standard name (for nodes defined by OPC Foundation): | Example: Find out a full node ID from its standard name (for nodes defined by OPC Foundation): | ||
<pre>ua ni -sn=Server_NamespaceArray</pre> | <pre>ua ni -sn=Server_NamespaceArray</pre> | ||
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<pre>Standard name: Server_NamespaceArray | <pre>Standard name: Server_NamespaceArray | ||
Expanded text: nsu=http://opcfoundation.org/UA/ ;i=2255</pre> | Expanded text: nsu=http://opcfoundation.org/UA/ ;i=2255</pre> | ||
=== Display tables of node IDs and their standard names === | |||
Example: Display a table of all node IDs defined by OPC Foundation, sorted by their identifier. | Example: Display a table of all node IDs defined by OPC Foundation, sorted by their identifier. | ||
<pre>ua nodeId listNames?</pre> | <pre>ua nodeId listNames?</pre> | ||
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The output sequence is truncated by default; in order to obtain the full table, use: | The output sequence is truncated by default; in order to obtain the full table, use: | ||
<pre>ua nodeId listValues? -!vs=:N99999</pre> | <pre>ua nodeId listValues? -!vs=:N99999</pre> | ||
== Command: ua qualifiedName == | == Command: ua qualifiedName == | ||
Similarly to the nodeId command, you can use this command e.g. to obtain tables of qualified names defined by the OPC Foundation. | Similarly to the nodeId command, you can use this command e.g. to obtain tables of qualified names defined by the OPC Foundation. | ||
Revision as of 13:21, 7 January 2021
Command, Arguments and Options
Command: ua nodeId
Get standard name that corresponds to OPC UA Node ID
Example: Figure out standard name of a node ID in namespace 0 (reserved by OPC Foundation):
ua nodeId i=2253
Output:
Standard name: Server Expanded text: nsu=http://opcfoundation.org/UA/ ;i=2253
Get the OPC UA Node ID that corresponds to a given standard name
Example: Find out a full node ID from its standard name (for nodes defined by OPC Foundation):
ua ni -sn=Server_NamespaceArray
Output:
Standard name: Server_NamespaceArray Expanded text: nsu=http://opcfoundation.org/UA/ ;i=2255
Display tables of node IDs and their standard names
Example: Display a table of all node IDs defined by OPC Foundation, sorted by their identifier.
ua nodeId listNames?
Output:
Result (sequence): ╒═══════════════════════════════════════╤══════════════════════════════════════════╕ │[] │Value │ ╞═══════════════════════════════════════╪══════════════════════════════════════════╡ │nsu=http://opcfoundation.org/UA/ ;i=1 │Boolean │ │nsu=http://opcfoundation.org/UA/ ;i=2 │SByte │ │nsu=http://opcfoundation.org/UA/ ;i=3 │Byte │ │nsu=http://opcfoundation.org/UA/ ;i=4 │Int16 │ │nsu=http://opcfoundation.org/UA/ ;i=5 │UInt16 │ ...
The output sequence is truncated by default; in order to obtain the full table, use:
ua nodeId listNames? -!vs=:N99999
Example: Display a table of all node IDs defined by OPC Foundation, sorted by their class and standard name (alphabetically):
ua nodeId listValues?
Output:
Result (sequence): ╒══════════════════════════════════════════════╤═════════════════════════════════════════╕ │[] │Value │ ╞══════════════════════════════════════════════╪═════════════════════════════════════════╡ │DataTypes.AccessLevelExType │nsu=http://opcfoundation.org/UA/ ;i=15406│ │DataTypes.AccessLevelType │nsu=http://opcfoundation.org/UA/ ;i=15031│ │DataTypes.AccessRestrictionType │nsu=http://opcfoundation.org/UA/ ;i=95 │ │DataTypes.ActivateSessionRequest │nsu=http://opcfoundation.org/UA/ ;i=465 │ │DataTypes.ActivateSessionResponse │nsu=http://opcfoundation.org/UA/ ;i=468 │ ...
The output sequence is truncated by default; in order to obtain the full table, use:
ua nodeId listValues? -!vs=:N99999
Command: ua qualifiedName
Similarly to the nodeId command, you can use this command e.g. to obtain tables of qualified names defined by the OPC Foundation.
Example:
ua qn ln?
which is an abbreviated form of:
ua qualifiedName listNames?
Command: ua statusCode
The statusCode command decodes and encodes OPC UA status codes.
Example (using hexadecimal value):
ua statusCode 0x80010000
or (using decimal value)
ua statusCode 2147549184
Output:
Status code: BadUnexpectedError Internal value: 2147549184 (0x80010000)
Example: Encode the status code, given its code bits symbolically:
ua statusCode -cbs BadNodeIdUnknown
Output:
Status code: BadNodeIdUnknown Internal value: 2150891520 (0x80340000)
