Specifications

IP 240 Addressing

3 Addressing

The IP 240 module reserves an address space of 16 bytes in the I/O areas. All data are exchanged

via these areas, which can be read out and written to by the S5 CPU. The data transfer is handled

by a standard function block. It is merely necessary to set the desired starting address and the I/O

area (P or Q area) via coding switches on switchbanks S2 and S3 on the module.

For address decoding, the IP 240 needs the memory-I/O select signal PESP in addition to the S5 bus

addresses A 0 to A 11.

Fig. 3-1. Locations of the Address Switches

S2 S1

Switch banks

S2 and S3 for

address setting

S2.5

off on

S3.1

S3.4

Note

The modules are delivered with a set starting address of 128 in the normal (P)

I/O area. Before start-up, make sure that no two modules reserve the same

EWA 4NEB 811 6120-02

3-1