
3. OPERATION
B–62884EN/01
64
(1) Outline of function
Using this function, Step Operations and Stop Operations listed
below are possible. Step Operations are to execute ladder by
specified step (single instruction, single net, and specified block).
Stop Operations are to stop the execution of ladder when specified
condition becomes true.
(1) Step Operation to execute one instruction from current position.
(2) Step Operation to execute one net (one circuit) from current
position.
(3) Step Operation to execute from current position to specified
contact or coil instruction.
(4) Stop Operation to execute from the first step and stop the
execution at specified contact or coil instruction.
(5) Stop Operation to stop the execution of ladder by a trigger of
signal condition. (Optionally, a trigger counter can be specified.)
(6) Stop Operation to stop the execution of ladder after executing one
scan. (Optionally, a scan counter can be specified.)
Warning
When executing or stopping a ladder program, special care
is necessary. If this function is applied incorrectly, the
machine may act unpredictably.
Avoid using this function if personnel are present near the
machine.
(2) Operations
(a) Selection of Ladder Debugging Screen
Please select “Ladder Debug” of Ladder Mode by Displaying
setting dialog (F10) of the Ladder Monitor screen.
Display setting
OK
Cancel
F Symbol
f Address
f Relay Comment
f Symbol & Address
f Relay Comment & Address
f Relay Comment & Symbol
Ladder Mode
f Ladder Monitor f Online Editor
f Signal Trigger F Debug Ladder
Symbol & Comment Display
Function Paramareter
V Display
3.4.3.1.4
Ladder debugging
function