Yaskawa SMC–4000 - Manual (Page 204)

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SMC–4000 User Manual
RE (Return from Error)
[Program Flow]
DESCRIPTION:
The RE command is used to end a position error handling subroutine or limit switch handling subroutine.
The error handling subroutine begins with the
#POSERR label. The limit switch handling subroutine begins
with the #LIMSWI . An RE at the end of these routines causes a return to the main program. Care should be
taken to be sure the error or limit switch conditions no longer occur to avoid re-entering the subroutines. If
the program sequencer was waiting for a trippoint to occur, prior to the error interrupt, the trippoint
condition is preserved on the return to the program if RE1 is used. RE0 clears the trippoint. To avoid
returning to the main program on an interrupt, use the
ZS (Zero Subroutine Stack) command to zero the
subroutine stack. No RE is needed after ZS (Zero Subroutine Stack) . After using ZS, use a JP (Jump to
Program Location) command to return to a key location in the main program.
ARGUMENTS: RE n where
0 or nothing clears the interrupted trippoint
1 restores state of trippoint
USAGE:
RELATED COMMANDS:
#POSERR Excessive Position Error Special Label
#LIMSWI Limit Switch Special Label
EXAMPLES:
*Note An application program must be executing for the # LIMSWI and #POSERR subroutines to
function.
While Moving No Minimum n Value 0
In a Program Yes Maximum n Value 1
Command Line No Default Value 0
Can be Interrogated No Default Format ---
Used as an Operand No
#A;JP #A;EN Label for main program
#POSERR Begin Error Handling Subroutine
MG "ERROR" Print message
SB1 Set output bit 1
RE Return to main program and clear trippoint