Installation guide
3.8 Standalone TIM 4 with an S7-400 or PC
Station control system
126
System Manual, 07/2009, C79000-G8976-C178-07
S7-400 with one WAN attachment
The following figure shows the simplest configuration for an S7-400 with one connection to a
WAN over a TIM 4.
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Figure 3-18 SIMATIC S7-400 with TIM 4 on MPI bus, 1 connection a WAN
A suitable modem or other transmission device can be connected to the combined RS-
232/RS-485 interface of the TIM 4.