Common Protocol Errors

Plant SCADA has two kinds of protocol driver errors - generic and specific. Generic errors are hardware errors 0-31, and are common to many protocols. Sometimes only the generic error is available, though often both the generic error and a specific error are given.

Protocol drivers also have their own specific errors, which can be unique and therefore cannot be recognized by the hardware alarm system. The drivers convert specific errors into generic errors that can be identified by the I/O server. For example, when a driver experiences an error, there is often both a protocol-specific error and a corresponding generic error.

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, you need to have Alarm Category 255 defined with a display format that includes {ErrDesc,15} {ErrPage,10}.

If you need more information to resolve an error, refer to the documentation that accompanied the I/O device (or network). If, after reviewing the documentation, you still cannot solve your problem, contact support via the AVEVA Knowledge & Support Center (https://softwaresupport.aveva.com/).