ET 200S in the PROFIBUS Network
3-9
ET 200S Interface Module IM 151/CPU
A5E00058783-01
3.4 Functions via the Programming Device/OP
You can use the programming device to:
Configure the IM 151/CPU with ET 200S modules and put them into operation
on the PROFIBUS-DP
Program the CPU part of the IM 151/CPU
Execute test functions such as “Monitor/Modify Variables” and “Program Status”
Display the module status (i.e. for the CPU part, for example, you can display
the utilization of the load and working memory, stack contents and diagnostic
buffer contents)
You can use the OP to:
Operate and monitor
You will find a detailed description of the functions in the
STEP 7
online help
system.
Running the ET 200S on a Stand-Alone Basis with the Programming Device –
Required Settings in
STEP 7
If you connect an ET 200S to a programming device on a stand-alone basis, you
must specify a setting for the programming device interface in
STEP 7
for the
execution of online functions on the IM 151/CPU (e.g. downloading a configuration
or user program to the IM 151/CPU, or reading out information from the
IM 151/CPU online). Proceed as follows:
1. In
STEP 7
, choose the “Setting the PG/PC Interface” tool (Start > STEP 7 >
Setting the PG/PC Interface).
2. Set the interface of your programming device to PROFIBUS.
3. Call the properties of the PROFIBUS network.
4. Set the properties so that the programming device/PC is the only active master
on the bus.
Note: When you operate the ET 200S on a stand-alone basis and the
programming device/PC is not set as the only master, an online connection to the
IM 151/CPU is not possible.
If you subsequently configure a DP master for the network and want to go online,
you should cancel these settings; additional security functions are thus activated
against bus faults.
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