SBUS Driver Specific Errors

When a hardware error occurs, Plant SCADA generates an alarm, and displays the alarm on the hardware alarm page (in the alarm description of the hardware alarm). To see the error number, make sure you have Alarm Category 255 defined with a display format that includes {ErrDesc,15} {ErrPage,10}.

There are a number of generic errors that are common to all protocols. In some cases, only the generic error is available, though often both the generic error and a specific error are given.

The following errors are specific to this protocol. Plant SCADA displays the error number and description for common protocol-specific errors. Uncommon errors are not contained in the Plant SCADA error database, in which case Plant SCADA will only display the error number.

The error below is common to all three modes of transmission used by the SBUS protocol (parity, break, data).

• 28h GENERIC_GENERAL_ERROR

  Negative acknowledgement

The following errors only apply when the protocol is set to data mode of transmission.

• 29h GENERIC_GENERAL_ERROR

  Negative acknowledgement because of password

• 30h GENERIC_GENERAL_ERROR

  Negative acknowledgement because the port is configured with the reduced protocol

• 31h GENERIC_GENERAL_ERROR

  Negative acknowledgement because PGU is active (involve from full to reduced protocol)

You may require additional information to enable you to rectify an error. This information should be detailed in the documentation that accompanied the I/O Device (or network). If, after reviewing all documentation, you cannot rectify an error, contact Technical Support.