Siemens S5-135U/155U appendix EU 184U, EU 187U, EU 183U, EU 185U, Addressing

Interface Modules

Connecting the	For one IM 300-5, you can connect up to three EUs to a CC or EU in
EU 184U and	distributed arrangement (see Figures 7-5 and 7-6). The EUs are supplied with
EU 187U	operating voltage via the IMs. Any free connections on the IM 300-5 and the
	last IM 312-5 require no terminator.
	Note
	The maximum permissible current over each connection of the
	IM 300-5CA11 is 5 A.

Connecting the	You can connect up to four EUs to each IM 300-3. The last IM 312-3
EU 183U, EU 185U	requires a terminator.
Connecting the	You can connect up to three ERs to each IM 300-5L (-5LB11). The ERs are
ER 701-1	supplied with operating voltage via the IMs.
	Note
	The maximum permissible current over each connection of the
	IM 300-5LB11 is 2 A.
	The connection of central controller and expansion unit to the IM 300-5LB11
	is provided exclusively by the 705-0 connecting cable. It is available in two
	lengths: 0.5 m and 1.5 m (refer to the ordering information for order
	numbers).
Addressing	When the IM 300s are used in the S5-135U/155U PLC, the input/output
	modules can be addressed in the normal (P) and extended (O) areas.
	You may only set module addresses in the EU which are not used in the CC.
	This applies to both areas.

System Manual	7-3
C79000-G8576-C199-06