Understanding The Basics Of S7-200 Network Communications - Siemens SIMATIC S7-200 System Manual

S7-200 Programmable Controller System Manual

Understanding the Basics of S7-200 Network Communications

Selecting the Communication Interface for Your Network
The S7-200 supports many different types of communication networks. The selection of a network
is performed within the Set PG/PC Interface property dialog. A selected network is referred to as
an Interface. The different types of interfaces available to access these communication networks
are:
PPI Multi-Master cables
-
CP communication cards
-
Ethernet communication cards
-
To select the communication interface for
STEP 7--Micro/WIN, you perform the following
steps. See Figure 7-1.
1. Double-click the icon in the Communications
Setup window.
2. Select the interface parameter for
STEP 7--Micro/WIN.
PPI Multi-Master Cables
The S7-200 supports communication through two
different types of PPI Multi-Master cables. These
cable types permit communication through either an
RS-232 or a USB interface.
As shown in Figure 7-2, selecting the PPI
Multi-Master cable type is simple. You perform the
following steps:
1. Click the Properties button on the Set PG/PC
Interface property page.
2. Click the Local Connection tab on the
Properties page.
3. Select the USB or the desired COM port .
Tip
Please note that only one USB cable can be used at a time.
Tip
Examples in this manual use the RS-232/PPI Multi-Master cable. The RS-232/PPI Multi-Master
cable replaces the previous PC/PPI cable. A USB/PPI Multi-Master cable is also available.
Refer to Appendix E for order numbers.
210
Figure 7-1 STEP 7- -Micro/WIN
Communications Interface
Figure 7-2 PPI Multi-Master Cable Selection
1.
2.
1.
2.
3.