I. Manual Restoration of Physical Linkage
By manually inspecting the network port indicator lighting of the MES, SCADA industrial control computer, and switch, verify the connectivity status of the physical link.
Manually replace the faulty network cable, re-crimp the RJ45 connector, and redirect the communication network cable to a spare, unused port on the switch.
Ensure that the communication network cable is not in close proximity to high-voltage power lines by manually adjusting the routing to prevent excessive packet loss caused by electromagnetic interference.
II. Manual Reconstruction of Communication Link
Manually verify the protocol versions at both ends and adjust the OPC UA/MQTT driver versions to ensure compatibility.
To eliminate port blockage and allow access to the designated port for RC calibration data, manually add a rule to the industrial firewall.
Manually transfer the conflicting IP address to an unused network segment, reconfigure the routing rules, and re-establish network connectivity at both endpoints.
III. Manual Restoration of Data Mapping
By manually importing the pre-backed-up RC parameter point mapping configuration file, any misaligned register address configurations will be overwritten.
Manually adjust the numerical type, unit, and decimal places of the RC calibration data to ensure that the data formats on both sides are in alignment.
Manually synchronise the most recent RC calibration baseline parameters from the MES end to the SCADA end to eradicate version discrepancies.
IV. Manual Service Process Recovery
To restore service operation without the necessity of restarting the entire system, the SCADA data acquisition service and the MES synchronisation scheduling service can be manually resumed..
Make the release of RC calibration data consumption channels a priority by manually removing non-core historical production data messages from the message queue.
To resume synchronous data write operations and release inactive connections, manually restart the database connection pool service.
V. Manual Data Completion Recovery
Initiate a breakpoint resume task manually; 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.
Manually export the RC calibration data stored locally in SCADA and integrate it into the MES system in batches to prevent data loss.
Verify the recovery effect and confirm the success of 100% bidirectional data synchronisation by conducting three full-process RC calibration data synchronisation tests manually.
