Siemens Simatic S7-200 System Manual page 51
Programmable controller
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Also See for Simatic S7-200:
- System manual (607 pages) ,
- Getting started (65 pages) ,
- Manual (55 pages)
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Null Modem Adapter
Modem
25-pin
2
3
4
5
6
7
8
20
Figure 3-15
Setting Up the Communications Parameters When Using Modems
To set up communications parameters between your programming device or PC and the
CPU when using modems, you must use the module parameter set for the PC/PPI cable.
Otherwise, the Configure Modems function is not enabled. Ensure that the Configure
Modems function is enabled and then set up the configuration parameters by following these
steps:
Note
The communications setup described here applies to the Multi Tech
MultiModemZDX MT1932ZDX. If you are not using this type of modem, you must choose
"User-Defined" as the Selected Modem in the Configure Modems dialog box. Your modem
must be an 11-bit modem and must run at 9600 baud. Check the manual for your modem
to determine the parameters to enter in the Configuration tabs of the Configure Modems
dialog box.
1.
Select the menu command Setup
In the Communications dialog box, if the Current Protocol area shows "PC/PPI
cable(PPI)," click the "PG/PC Interface..." button and go on to step 3.
If the Current Protocol area does not show "PC/PPI cable(PPI)," click the "PG/PC
Interface..." button and continue with step 2.
2.
In the Access Path tab, in the Module Parameter Set Used list box, select PC/PPC
cable(PPI). If this selection is not in the list box, you must install it. See Section 3.1.
3.
Click the "Properties" button. The PC/PPI cable(PPI) properties sheet appears.
4.
In the PC/PPI cable(PPI) properties sheet, click the Local Connection tab.
5.
In the COM Port area, ensure that the Use Modem box contains a check mark. If the box
is empty, select it to insert a check mark.
6.
Click the "OK" button. The Access Path tab appears again.
7.
Click the "OK" button. The Communications dialog box appears again.
S7-200 Programmable Controller System Manual
C79000-G7076-C230-02
Installing and Using the STEP 7-Micro/WIN Software
25-pin
2
3
4
5
6
7
8
20
Pin Assignments for a Null Modem Adapter
Communications....
25-Pin to 9-Pin Adapter
PC/PPI cable
25-pin
9-pin
2
2
3
3
7
5
3-21
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