Installation guide
3.5 Installing the TIM 4R-IE in an S7-300
Station control system
System Manual, 07/2009, C79000-G8976-C178-07
109
Connection to ST7cc / ST7sc over Ethernet
The following figure shows a configuration in which the TIM is connected to the PC over its
Ethernet interface. As of ST7cc V2.5 or ST7sc V1.1, the TIM can exchange data directly with
ST7cc/ST7sc over its Ethernet interface.
There are no special requirements of the CPU for this configuration. No SINAUT software is
necessary on the CPU for communication between the TIM and PC.
Since the Ethernet interface is occupied by the local communication with the PC, the
TIM 3V IE only provides the control center with one connection to a WAN in this
configuration.
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over the RS-232 port to a classic WAN
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Figure 3-7
SINAUT ST7cc / ST7sc control center system with a TIM 3V-IE providing a
connection over Ethernet,
1 classic connection to WAN.
Even with this configuration, further TIM 3V-IE Advanced modules can be inserted in the
S7-300 rack. Each TIM can be connected to the PC over its Ethernet interface and provides
the PC with one connection to a WAN.
The other TIMs can also transfer their data to the first TIM over the backplane bus and use
the Ethernet interface of this TIM as a common access to the PC. In this case, each further
TIM provides the PC with two connections to the WAN. In this case, the maximum number of
TIM modules is not restricted by the connection resources of the CPU because they are not
required. The maximum number of TIM modules is restricted by the number of connection
resources of the CP in the control center PC.
3.5
Installing the TIM 4R-IE in an S7-300
Introduction
The TIM 4R-IE can be used in an S7-300 as a communications processor (CP). All S7-300
standard and compact CPUs can be combined with the TIM 4R-IE. There are, however,
