Automatic Single Block (Mode 9) - Siemens SIMATIC S5 Manual

Machine Data, Modes and Traversing Programs IP 266
The remaining distance to go is retained until the next positioning operation.
Interruption of the traversing program via the "External Start Enable" signal is
possible. If a positioning operation or dwell is currently in progress, it is com-
pleted prior to interruption of the program. When the signal is enabled, i. e.
when the signal level is "1", the traversing program is resumed at the point of
interruption.
5.3.9

Automatic Single Block (Mode 9)

Automatic single block Program number Start/Stop/Exec
Mode Parameters Function
Traversing programs written for mode 8 can be used without modification in
mode 9. Before starting the mode, enter the number of the traversing program
you want to execute. Start the mode by selecting the "Start" function.
The IP 266 interrupts program execution prior to every positioning operation or
dwell. Start the next job with "Exec".
As in mode 8, an "External Start Enable" signal can interrupt the traversing pro-
gram. If a positioning operation or dwell is in progress, it is completed prior to
the interruption.
The IP then awaits the "Exec" command. When you have pressed "Exec", absence
of the "External Start Enable" signal is flagged with an error message. When the
signal is enabled, i. e. becomes "1", the traversing program is resumed at the
point of interruption.
"Exec" is not permitted at this point, and would abort the traversing program.
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