I. Manual Restoration of Physical Linkage
Confirm the connectivity status of the physical link by manually inspecting the network port indicator lighting of the MES, SCADA industrial control computer, and switch.
Replace the faulty network cable manually, re-crimp the RJ45 connector, and redirect the communication network cable to a spare, unused port on the switch.
To prevent excessive packet loss caused by electromagnetic interference, manually adjust the routing of the communication network cable to ensure that it is not in close proximity to high-voltage power lines.
II. Manual Reconstruction of Communication Link
Verify the protocol versions at both ends manually and modify the OPC UA/MQTT driver versions to a compatible state.
In the industrial firewall, manually add a rule to permit access to the designated port for RC calibration data and eliminate port blockage.
Change the conflicting IP address to an unused network segment manually, reconfigure the routing rules, and restore network connectivity at both ends.
III. Data Mapping Manual Restoration
Overwrite any misaligned register address configurations by manually importing the pre-backed-up RC parameter point mapping configuration file.
Align the data formats on both sides by manually adjusting the numerical type, unit, and decimal places of the RC calibration data.
To eliminate version discrepancies, manually synchronise the most recent RC calibration baseline parameters from the MES end to the SCADA end.
IV. Recovery of Manual Service Processes
The SCADA data acquisition service and the MES synchronisation scheduling service can be manually restarted to restore service operation without the need to restart the entire system.
Prioritise the release of RC calibration data consumption channels by manually clearing non-core historical production data messages from the message queue.
Restart the database connection pool service manually to resume synchronous data write operations and release inactive connections.
V. Recovery of Manual Data Completion
Manually initiate a breakpoint resume task; the system will automatically compare the timestamps of the data on both parties and retransmit the RC calibration data that was lost during the interruption.
To prevent data loss, manually export the RC calibration data stored locally in SCADA and import it into the MES system in batches.
Confirm the success of 100% bidirectional data synchronisation and verify the recovery effect by conducting three full-process RC calibration data synchronisation tests manually.
