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PI Interface for Modbus Ethernet PLC

Errors (Phase 2)

  • Last UpdatedSep 28, 2022
  • 2 minute read

Unable to open synchronization file

Message

27-Jun-08 17:27:17

PI Eight Track 1 1> Error 5: Unable to create file \\georgiaking\GeorgiaKingStorage\UnIntFailover\\PIEightTrack_eight_1.dat

Verify that interface has read/write/create access on file server machine.

Initializing uniint library failed

Stopping Interface

Cause

This message will be seen when the interface is unable to create a new failover synchronization file at startup. The creation of the file only takes place the first time either copy of the interface is started and the file does not exist. The error number most commonly seen is error number 5. Error number 5 is an "access denied" error and is likely the result of a permissions problem.

Resolution

Ensure the account the interface is running under has read and write permissions for the folder. The log on as property of the Windows service may need to be set to an account that has permissions for the folder.

Error opening synchronization file

Message

Sun Jun 29 17:18:51 2008

PI Eight Track 1 2> WARNING> Failover Warning: Error = 64

Unable to open Failover Control File \\georgiaking\GeorgiaKingStorage\Eight\PIEightTrack_eight_1.dat

The interface will not be able to change state if PI is not available

Cause

This message will be seen when the interface is unable to open the failover synchronization file. The interface failover will continue to operate correctly as long as communication to the Data Archive is not interrupted. If communication to PI is interrupted while one or both interfaces cannot access the synchronization file, the interfaces will remain in the state they were in at the time of the second failure, so the primary interface will remain primary and the backup interface will remain backup.

Resolution

Ensure the account the interface is running under has read and write permissions for the folder and file. The log on asproperty of the Windows service may need to be set to an account that has permissions for the folder and file.

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