5.2 User Programs
5.2.3 Sequence Program
5-29
Outline of Motion Control Systems
( 3 ) Work Register
Monitor a sequence program through a work register.
A work register, similar to the motion program registered in M-EXECUTOR, has status flags in the M-EXECUTOR
control register.
The following table shows the work register configuration of the sequence program.
[ a ] Status Flag of Sequence Program
The status flags of a sequence program allow you to know the execution status of the sequence program.
The following table explains the detailed contents of status flags.
[Status]
Sequence program alarm
When referencing a sub sequence program (SSEE command execution) and an error is detected, “Bit8: Program alarm is occur-
ring” is turned ON. If the error is cleared, it is turned OFF.
Error details are as follows:
Work Register Content
Status Status flag of a sequence program
Table 5.3 Status
Bit No. Status
0 Program running
1 (Reserved)
2 (Reserved)
3 (Reserved)
4 (Reserved)
5 (Reserved)
6 (Reserved)
7 (Reserved)
8 Program alarm is occurring
9 Stopping at breakpoint
A (reserved)
B In debug mode (EWS debug operation)
C Program type 1: Sequence program
D Start request history
E (Reserved)
F (Reserved)
Error Details
Called program is unregistered
Called program is not a sequence program
Called program is not a sub program (main program is called)
Called program number is over
Nest over error
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