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Figure 3-7
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,
constraints that must be taken into account relating to the way in which data exchange
between the TIM and the CPU in the rack is handled (the SINAUT program). For the
TIM 4R-IE, there are two options:
1. TD7onTIM
2. TD7onCPU
SINAUT ST7 Station control system - System Manual
System Manual, 05/2007, C79000-G8976-C178-06
SINAUT ST7cc / ST7sc control center system with a TIM 3V-IE providing a connection
over Ethernet,
1 classic connection to WAN.
This SINAUT TD7 program runs on the TIM.
All standard and compact CPUs can be used with restriction.
This SINAUT TD7 program runs on the CPU and is created for the CPU with the blocks
from the SINAUT TD7 library.
In this case, only CPUs with a work memory adequate to accommodate the SINAUT
program can be used. The size of the program depends on the amount of data to be
transmitted. At least 20 Kbytes are required.
3.5 Installing the TIM 4R-IE in an S7-300
Installation guide
125
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