Mitsubishi Electric M800VW Series Programming Manual page 637

M800V/M80V Series PLC Programming Manual (2/2)
14 PLC Help Function
14.10 Arbitrary Reverse Run
 In a macro interrupt program, start a reverse run at the point (or the block start point) where the interruption occurs and
which a M99 (complete sub program) block follows.
If a reverse run has started with a block stop in the macro interrupt program, the movement returns to the interruption start
point in the forward run, and then jumps to the next block of the reverse run start block in the macro interrupt program.
N07
N105
Single block (SBK)
Reverse run control
mode (RVMD)
Macro interrupt (UIT)
Reverse run (VRV)
Reverse run from
block start (RVSP)
In macro interrupt
M function finish
(FINn)
Automatic operation
"start" command (ST)
In automatic operation
"start" (STL)
Program execution
Reverse run in "( )"
Forward run in "[ ]"
 While the reverse run is executed, the "Macro interrupt" signal is ignored.
IB-1501668-B
N103
N101
Reverse run turns ON
N07 Stop N101 Stop N102 Stop
N01 G90 G54 X0 Y0 ;
N02 M96 P1002 ;
N03 G91 G01 X - 50. F500 ;
N04 Y - 20.
N05 X20.
N06 G02 Y - 50. R25. ;
N07 G03 Y - 50. R25. ;
N08 G01 X30. ;
M02 ;
O1002 ;
#101=#5001 #102=#5002;
N101 G90 X70. ;
N102 M0 ;
N103 G90 G53 X#101 Y#102;
N104 M0 ;
N105 G01 Y - 20. ;
G04 ;
M99 ;
Reverse run turns OFF
N103 Stop N104 Stop (N7)
N105 is executed
616
Stop [N7] Stop N105