Appendix C: OPC-UA Features and Configuration
60
OsmoTECH PRO Multi-Sample Micro-Osmometer Service Guide
8. Select the Remote results method node
9. Enter a date/time in ISO 8061 format (yyyy-MM-
ddThh:mm:ss) value in the Results requested
argument for this method, and submit the method
call.
The method returns output arguments in a JSON list
of database result records since the date/time
entered.
– The OPC user can check the Tubes Status at any
time to show a status of T (tested) A (available), E
(error), B (being tested), P (present ready for test),
or U (unknown).
– The OPC user can send a Remote Events request at
any time to examine recent events— settings
changes, errors, instrument power up, maintenance,
or cleaning—saved in the database.
JSON output:
The output of the Results and Events requests are
strings in JSON format. Each record is in one json object
where the field names are abbreviated such that:
DS = Description
RS = Result
SI = Sample ID
TN = Tube Number (position)
TS = Timestamp
TY = Type of event
UI = User Id
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