Siemens Simatic S7-200 System Manual page 42

Installing and Using the STEP 7-Micro/WIN Software
Setting Up Communications during Installation
Under the Windows 95 or Windows NT 4.0 operating system, at the end of the
STEP 7-Micro/WIN installation, the Communications dialog box appears automatically. You
can set up your configuration at that time, or later.
Selecting the Correct Module Parameter Set and Setting It Up
When you have reached the Setting the PG/PC Interface dialog box (see Figure 3-7), you
must select "Micro/WIN" in the Access Point of Application list box in the Access Path tab.
This dialog box is common to several different applications, such as STEP 7 and WinCC, so
you must tell the program the application for which you are setting parameters.
When you have selected "Micro/WIN" and have installed your hardware, you need to set the
actual properties for communicating with your hardware. The first step is to determine the
protocol that you want to use on your network. See Table 3-1 or Chapter 9 to find out what
your CPU supports and what you should use for your configuration. In most cases, you will
use the PPI protocol for all of your CPU modules, except for the high-speed port (DP port) on
the CPU 215. This port uses the MPI protocol.
When you have decided what protocol you want to use, you can choose the correct setup
from the Module Parameter Set Used list box in the Setting the PG/PC Interface dialog box.
This box lists each hardware type that you have installed, along with the protocol type in
parentheses. For example, a simple setup might require you to use the PC/PPI cable to
communicate with a CPU 214. In this case, you select "PC/PPI cable(PPI)." Another example
is a setup that requires communicating with a CPU 215 through its high-speed port (DP port)
by means of a plain MPI-ISA card that you have installed in your computer. In this case, you
select "MPI-ISA Card(MPI)."
After you have selected the correct module parameter set, you must set up the individual
parameters for the current configuration. Click the "Properties..." button in the Setting the
PG/PC Interface dialog box. This action takes you to one of several possible dialog boxes,
depending on the parameter set that you selected. The sections that follow describe each of
these dialog boxes in detail.
In summary, to select a module parameter set, follow these steps:
1. In the Setting the PG/PC Interface dialog box (see Figure 3-7), select "Micro/WIN" in the
Access Point of Application list box in the Access Path tab.
2. Ensure that your hardware is installed. See Section 3.2.
3. Determine the protocol that you want to use.
4. Select the correct setup from the Module Parameter Set Used list box in the PG/PC
Interface dialog box.
5. Click the "Properties..." button in the Setting the PG/PC Interface dialog box.
From this point, you make selections according to the parameter set that you chose.
Setting Up the PC/PPI Cable (PPI) Parameters
This section explains how to set up the PPI parameters for the following operating systems
and hardware:
Windows 3.1: PC/PPI cable
Windows 95 or Windows NT 4.0: PC/PPI cable
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S7-200 Programmable Controller System Manual
C79000-G7076-C230-02