...
- Endpoint URL
- Server certificate (It is the responsibility of the client to ensure iopcua_dpst that it is connecting to the expected server)
- User login/password, if applicable.
...
FieldName | Type | Reading field | Default value | Details |
---|---|---|---|---|
Cause | UInt32 (Read-Only) | do_cot | Mandatory | See Cause of Transmission |
Confirmation | Boolean (Read-Only) | do_confirmation | false | |
Source | String (Read-Only) | do_source | "process" | "process" | "substituted" |
ComingFrom | String (Read-Only) | do_comingfrom | Mandatory | Any protocol name ("iec104" ,"opcua", ...) |
TmOrg | String (Read-Only) | do_ts_org | "genuine" | "genuine" | "substituted" |
TmValidity | String (Read-Only) | do_ts_validity | "good" | Validity of the Timestamp of Value "good" | "invalid" | "reserved" | "questionable" |
DetailQuality | UInt32 (Read-Only) | do_quality | 0 | OR-Mask of following values:
|
TimeQuality | UInt32 (Read-Only) | do_ts_quality | 0 | OR-Mask of following values:
|
SecondSinceEpoch | UInt64 (Read-Only) | do_ts | 0 | Number of seconds since Linux Epoch |
Value | (See below) (Read-Only) | do_value do_value_quality | Mandatory | (See below) |
...
The TeleControls represent commands received from an OPC UA client -connected to the North plugin- that must be sent to a south service. Therefore, they expose Read/Write variables that will be written by a client, except for the feedback of operation, which is Read-Only (Variable Reply
).
As a single PIVOT TC contains the information provided in several OPC variables, the following procedure has been defined to ensure atomicity of the operation. An OPC UA client must:
...
OpcUa node ( ns=1;s= <PIVOT_ID> / ...) | Type | Reading field | Details | ||||
---|---|---|---|---|---|---|---|
String | co_id | co_id = PIVOT ID | |||||
String | co_type | co_type = "opcua_inc" | "opcua_apc" | "opcua_bsc" Other types not supported in current version. | |||||
Value | (See below) | co_value | (See below) | ||||
Reply | Same as Value (Read-Only) | co_replyBoolean | ro_reply / ro_id | Return value formfrom the south equipment.service | Trigger | UInt8 | co_test co_negative co_quQuality:
Value :
Note that there is no timeout handled in the plugin itself. If the remote equipment never acknowledges the request, |
Trigger | UInt8 | co_test co_se | Writing this node triggers the TC with current values, current timestamp and the command flags depending on the depending on the
Examples:
| ||||
Timestamp | co_ts | co_ts = timestamp (Number of seconds since Linux Epoch). The value is defined by local time when |
...