Xinje XL Series - Page 88

87
CALL
X0
FEND
SRET
END
P10
P10
 If X0= ON, execute the call instruction and jump to P10. After executing the subroutine,
return the original step via SRET instruction.
 Program the tag with FEND instruction (will describe this instruction later)
 In the subroutine 9 times call is allowed, so totally there can be 10 nestings.
 When calling the subprogram, all the timer, OUT, PLS, PLF of the main program will keep
the status.
 All the OUT, PLS, PLF, timer of subprogram will keep the status when subprogram returning.
 Do not write pulse, counter or timer inside the subprogram which cannot be completed in one
scan period.
Subprogram executing diagram:
CALL
FEND
SRET
P10
END
P10
X0
Main Program
Subroutine
Main program
Subprogram
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