Configuring Hardware and Communication Connections STEP 7.pdf

17 Commissioning and Service
Preparations for commissioning
For initial commissioning of networked stations you must initially download
configuration data to each one of the PLCs separately via menu command PLC >
Download (SIMATIC Manager). This supplies the PLCs with their required
hardware configuration as well as their network node address. After that you can
access the network with the menu command PLC > Compile And Download
Objects.
What has to be done if modifications were made during a commissioning or
service phase
If a multiproject is affected, we recommend that you adjust the projects before you
download them to the PLC (In SIMATIC Manager, call menu command File >
Multiproject > Adjust projects). After that you can call the central function
"Compile and download objects" to download the changes to the PLC.
17.1 Commissioning PROFIBUS Nodes
As of STEP 7 V5.2 you can use your PG for online access to PROFIBUS nodes,
even if only DP slaves and are connected to the PROFIBUS apart from the PG.
At these nodes you can perform diagnostics, monitor their inputs and modify the
outputs. You can also reconfigure the nodes and save the currently displayed
configuration as the new configuration (select the menu command PLC >
PROFIBUS > Save PROFIBUS Online Configuration as).
You can use the configuration saved in this manner as a basis for configuring new
station (in HW Config, select the menu command Station > Open).
How to start online access
In SIMATIC Manager, start this function with menu command PLC > PROFIBUS >
Operator Control/Monitoring And Diagnosis Of Nodes, or, when you configure
the hardware for an open offline station, with menu command PLC > Operator
Control/Monitoring And Diagnosis Of Nodes.
You will be displayed a view similar to that of HW Config (Station > Open Online).
The difference is here that you can specify nodes (e.g. via the context-sensitive
menu Specify Module), modify parameters and save the new configuration as
new station.
Configuring Hardware and Communication Connections with STEP 7
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