107BOnline and diagnostic tools
14.11 Downloading in RUN mode
S7-1200 Programmable controller
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System Manual, 11/2011, A5E02486680-05
14.11.5
System reaction if the download process fails
During the initial Download in RUN operation, if a network connection failure occurs, a "Load
preview" dialog will result as shown in the figure below.
14.11.6
Downloading the program in RUN mode
Before downloading the program in RUN mode, consider the effect of a RUN-mode
modification on the operation of the CPU for the following situations:
●
If you deleted the control logic for an output, the CPU maintains the last state of the
output until the next power cycle or transition to STOP mode.
●
If you deleted a high-speed counter or pulse output functions which were running, the
high-speed counter or pulse output continues to run until the next power cycle or
transition to STOP mode.