Siemens S5-135U/155U appendix Setting Addresses, Area Address, Switch Setting

Interface Modules

Setting the

Addresses

I/O Area Address

P area: F000 - F0FF

O area: F100 - F1FF

IM3 area:FC00 - FCFF

IM4 area:FD00 - FDFF

Switch Setting

0 = OFF, 1 = ON

S1:	0000 *)
		irrelevant
		n
		i
	0001	c
		h
		t
		r
	1100	e
		l
		e-
		v
	1101	a
		n
		t

OFF

ON

*) Factory setting

The I/O area address is set on the IM 314. This setting applies only to the digital and analog I/O modules.

Address areas P, O, IM3 and IM4 are available. To address the digital and analog I/O modules in these areas, set the switches by depressing the individual rockers.

In the STEP 5 standard operation set, you only address the P and O areas.

Module addresses used in the CC cannot be used in the EU in the P area, O area, IM3 area and IM4 area.

If you do not insert I/O modules in the central controller, an address space of 256 bytes is available in each I/O area for input/output addresses.

The following figure shows communication between the central controller and expansion units via the IM 304 and IM 314.

7-18	System Manual
	C79000-G8576-C199-06