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Interface to the User Program in the S7-200 CPU

2-13

SIMATIC NET CP 243-2 AS-i Master

C79000-G8976-C142/02

2.4.1 Identification Register in the Analog Module

Meaning

The identification register signals the I/O module identifier to indicate the existence

of an 8AI/8AO analog module with the value specified below.

The address at which the program can access the identification register depends

on the slot in which the CP 243-2 is inserted.

For further information about the special bit memory and its structure for I/O

modules refer to /4/.

Range of Values

The identification register can be read via the special bit memory area of the

S7-200 CPU. It provides the fixed value 1FH.

Example

Assuming that the CP 243-2 is inserted directly beside the S7-200 CPU.

The content of the identification register can be read via SMB 10.

1 2 ... 34 35 36 37 38 39 40 41 42 43 44 ... 149 150

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Siemens SIMATIC NET Manuel de service Page 39