Siemens SIMATIC S7-200 System Manual page 227

Setting the Remote Address
Before you can download the updated settings to
the S7-200, you must set both the communications
(COM) port of STEP 7--Micro/WIN (local) and the
address of the S7-200 (remote) to match the current
setting of the remote S7-200. See Figure 7-5.
After you download the updated settings, you may
need to reconfigure the PG/PC Interface baud rate
setting (if different from the setting used when
downloading to the remote S7-200). Refer to Figure
7-3 to configure the baud rate.
Searching for the S7-200 CPUs on a Network
You can search for and identify the S7-200 CPUs that are attached to your network. You can also
search the network at a specific baud rate or at all baud rates when looking for S7-200s.
Only PPI Multi-Master cables permit searching of all
baud rates. This feature is not available if
communicating through a CP card. The search
starts at the baud rate that is currently selected.
1. Open the Communications dialog box and
double-click the Refresh icon to start the
search.
2. To search all baud rates, select the Search All
Baud Rates check box.
Communicating over a Network
Figure 7-5 Configuring STEP 7- -Micro/WIN
Figure 7-6 Searching for CPUs on a Network
Chapter 7
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