Siemens S7-1200 System Manual page 500
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Also See for S7-1200:
- Operating instructions manual (132 pages) ,
- Programming manualline (74 pages) ,
- Manual (46 pages)
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Technology instructions
9.3 Motion control
Table 9- 71
Example 3 - Error during task execution
If "Execute" = FALSE before the error occurs
①
The task is started with a positive edge at the input parameter "Execute". Depending on the programming, "Execute"
can still be reset to the value FALSE during the task, or the value TRUE can be retained until after completion of the task.
②
While the task is active, the output parameter "Busy" indicates the value TRUE.
③
An error occurred during task execution. When the error occurs, the output parameter "Busy" changes to FALSE and
"Error" to TRUE.
④
If "Execute" retains the value TRUE until after the error occurs, then "Error" also remains TRUE and only changes its
value to FALSE together with "Execute".
⑤
If "Execute" has been set to FALSE before the error occurs, "Error" indicates the value TRUE for only one execution
cycle.
500
If "Execute" = FALSE after the error occurs
System Manual, 03/2014, A5E02486680-AG
S7-1200 Programmable controller
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