Lenze E94P PositionServo with MVOB - Manual (Page 101)

PM94H201B_13xxxxxx_EN L 99
Reference
Table 55: RESUME
RESUME Resume Statement
Purpose This statement redirects the code execution form the Fault Handler routine back to in the User
Program. The specific line in the User Program to be directed to is called out in the argument
of the “RESUME” statement. This statement is only allowed in the fault handler routine.
Syntax RESUME
Label in User Program to recommence program execution
See Also ON FAULT
Example:
;Main Program Section
…{statements}
FaultRecovery:
…{statements}
END
;Fault Handler Section
ON FAULT ;Once fault occurs program is directed here
…{statements} ;code to deal with fault
RESUME FaultRecovery ;Execution of RESUME ends Fault Handler and directs
;execution back the “FaultRecovery” label in the User
;Program.
ENDFAULT ;If RESUME is omitted the program will terminate here.
;Fault routine must end with a ENDFAULT statement
Table 56: RETURN
RETURN Return from subroutine Statement
Purpose This statement will return the code execution back from a subroutine to the point in the main program
from where the subroutine was called. If this statement is executed without a previous call to
subroutine, (GOSUB), fault #21 “Subroutine stack underflow” will result.
Syntax RETURN
See Also GOSUB
Example:
;Main Program Section
…{statements}…
GOSUB MySub
;Program jumps to Subroutine “MySub”
MOVED 10 ;Move to be performed once the Subroutine has executed
…{statements}
END
;main program end
;Subroutine Section
MySub: ;Subroutine called out from User Program
…{statements} ;Code to be executed in subroutine
RETURN ;Returns execution to the line of code under the “GOSUB”
;command, (MOVED 10 statement).