Loading The Project To The Plc - Siemens SINUMERIK 804D sl Commissioning Manual

7.3

Loading the project to the PLC

Introduction
For loading the configured PLC project, the following prerequisites must be fulfilled:
Requirement
• An Ethernet network connection exists between STEP7 and the PLC.
• The configuration to be loaded corresponds to the actual station configuration.
• NCU 7x0 is active
Supplementary condition
The following supplementary conditions regarding the system data blocks must be observed
when the configuration is loaded:
• HW Config
• SIMATIC Manager
CNC Part 1 (NCK, PLC, drive)
Commissioning Manual, 11/2006, 6FC5397-2AP10-2BA0
– NCK is in cyclic mode
– PLC in RUN or STOP status
When loading the configuration via HW Config, only the system modules and their
associated system data blocks selected in HW Config when loading the configuration are
loaded into the module. However, global data defined in SDB 210 is not loaded from the
HW Config, for example.
You have loaded the HW config to the module in the previous chapter "End hardware
configuration and load to the PLC".
When loading the configuration via the SIMATIC manager all the system data blocks are
loaded into the module. The following operator input sequence steps describe how to
load the system blocks to the module (PLC).
Note
When the PLC program is loaded in the "RUN" operating status, each block loaded
becomes active immediately. This can result in inconsistencies when executing the active
PLC program. It is therefore advised to place the PLC in the "STOP" state before loading
the configuration, if this has not already been done.
PLC commissioning
7.3 Loading the project to the PLC
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