6 Application Instructions API 00-49 CALL Instruction Program Flow: 0 The program flow when X0=off, X1=off main program The program flow when X0=Off, X1=On. X0 X1 main program main program P0 P63 CALL instruction subroutine Interruption subroutine I301 DVP-PLC Application Manual 6-15 CJ P0 CALL P63