Step Run and Break Section 4-3
106
Executing Only Specific Rung (Partial Execution)
When debugging only a specific rung, set a start point at the top of the rung
and a break point at the top of the next rung (shown by the hatching in the
diagram) to execute the specified range of the rung.
However, when repeating executing a specific rung continuously, reset a start
point, which is automatically cleared on execution, after stopping at the break
point.
Program
Address
Instruction Word
(Mnemonic)
Operand
000000 LD 000000
000001 AND 000001
000002 LD 000002
000003 AND NOT 000003
000004 LD NOT 000100
000005 AND 000101
000006 OR LD
000007 AND LD
000008 OUT 000200
000009 END
Block Run of Task
When the Ladder Engine is in stop (the Program mode), if a task is executed
from the pop-up menu after selecting the task in the [Task Control], Step Run
will be executed with a start point set at the top of the task and a break point
at the bottom of the task automatically. (While the program is being executed,
an interrupt will occur at the timings: when a task execution flag is set for a
Cyclic Task and when the interruption occurs for an interrupt task.)
Note In the Block Run, the following operation will be performed after stopped by an
End instruction:
(1) For a cycle task, the next executable task is executed,
(2) For an interrupt task, a cyclic task in the next cycle is executed.
4-3-5 I/O Break Condition Setting
The setting expression of I/O break condition is a logic expression combining
multiple I/O break conditions. If an I/O break condition is set, the I/O break
pauses the program execution when the contents of the I/O memory area get
to satisfy the specified condition. Only one condition can be set for the setting
expression.
0000
00
0000
01
0000
02
0000
03
0002
00
0001
00
0001
01
END
AUDIN - 8, avenue de la malle - 51370 Saint Brice Courcelles - Tel : 03.26.04.20.21 - Fax : 03.26.04.28.20 - Web : http: www.audin.fr - Email : info@audin.fr
To Next Page
Loading...
Need help?
General
