Configuring Hardware and Communication Connections STEP 7.pdf

Downloading
Procedure
• Select the menu command PLC > Download To Module.
STEP 7 guides you by means of dialog boxes to the result.
The configuration for the complete programmable controller is downloaded to the
CPU. The CPU parameters become active immediately. The parameters for the
other modules are transferred to the modules during startup.
Note
Partial configurations, for example, the configuration of individual racks, cannot be
downloaded to a station. For consistency reasons, STEP 7 always downloads the
whole configuration to the station.
Changing the CPU Operating Mode During Downloading
When you trigger the function PLC > Download, you can execute the following
actions on the programming device guided by the dialog boxes:
• Switch the CPU to STOP
(if the mode selector is set to RUN-P or the connection to the CPU is authorized
by password)
• Compress the memory
(if not enough continuous free memory is available)
• Switch the CPU back to RUN
Configuring Hardware and Communication Connections with STEP 7
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