RAPID reference manual - Technology

InstructionBookErrNoAdvanced RAPIDBookErrNo - Book a RAPID system error numberBookErrNo is used to book a new RAPID system error number.Examples! Introduce a new error number in a glue system! Note: The new error variable must be declared with the initial value -1VAR errnum ERR_GLUEFLOW := -1;! Book the new RAPID system error numberBookErrNo ERR_GLUEFLOW;The variable ERR_GLUEFLOW will be assigned to a free system error numberfor use in the RAPID code.! Use the new error number IF di1 = 0 THENRAISE ERR_GLUEFLOW;ELSE...ENDIF! Error handlingERRORIF ERRNO = ERR_GLUEFLOW THEN...ELSE...ENDIFIf the digital input di1 is 0 the new booked error number will be raised and thesystem error number ERRNO will be set to the new booked error number. Theerror handling of those user generated errors can then be handled in the error handleras usual.ArgumentsBookErrNoErrorNameErrorNameData type: errnumThe new RAPID system error variable name.RAPID reference manual - part 1a, Instructions A-R 17