
B–62884EN/01
3. OPERATION
37
The on–line functions are used to perform ladder and signal status
monitoring, display, and modification on the OPEN CNC screen.
[Menu structure]
(1) [1.File] menu
With this menu, the user can write to and read from a file on hard disk
or floppy disk, switch between functions, and terminate processing.
(2) [2.Diagnose] menu
With this menu, the user can display the PMC status and perform
editing for PMC status display.
(3) [3.I/O] menu
With this menu, the user can write programs to and read programs
from the PMC.
(4) [4.Communication] menu
With this menu, the user can establish communications for PMC
status display and PMC operation.
1) Starting the Ladder Editing Package
2) Loading programs from the PMC (automatic)
[When programs have already been loaded]
A comparison is automatically made between the PMC programs
and those which have already been loaded.
<When a mismatch is found>
– Program load operation
– Program store operation
– Continuation or end
3)
File
– Relay comment
– Net comment
4) On–line functions
– Diagnosis
– I/O (Program load/store, writing to
F–ROM)
– Communication (with the PMC)
– Off–line function selection
4)
Ladder Editing Package PMC
Sequence program
(RAM)
Power ON
Sequence program
(F–ROM)
Sequence program
(RAM)
3) Ladder monitoring
4)
3)
Fig.3.4.1.1 Overview of On–Line Functions
3.4
ON–LINE FUNCTIONS
3.4.1
Overview of the
On–Line Functions
3.4.1.1
Outline