Siemens S7-400 installation manual Connection Between a Send IM and Two Receive IMs

Wiring the S7-400

7.Open the cover of the first receive IM (interface module in the ER).

8.Plug the free end of the connecting cable into the upper male connector (receive interface) of the receive IM and screw the connector on.

9.Connect the remaining receive IMs by connecting one send interface (lower female connector X2) to one receive interface (upper male connector X1) in each case.

Send IM	Receive IM	Receive IM
		Terminator
Figure 4-23 Connection Between a Send IM and Two Receive IMs

10.Plug the terminator into the lower female connector of the receive IM in the last ER of the chain (see Reference Manual Module Specifications, Chapter 6).

4-36	Automation System S7-400	Hardware and Installation
		A5E00850741-01