Interface to the User Program in the S7-200 CPU

2.5.2Analog Output Area

Assignment of the Output Areas

The output area of the analog module of the CP 243-2 is mapped to the analog outputs of the user program using bank selection as shown below:

S7-200 CPU

CP 243-2

Analog outputs

8 AIW

e.g. AIW0..AIW14*)

*) The address area depends on the slot of the CP 243-2 (see Section 2.2)

Bank select bits

BS5...BS0

Bank 0

Bank 1

 

Bank 2

 

Bank 15

 

 

Bank 16

 

Bank 30

 

Bank 31

 

 

Bank 32

 

Bank 47

 

 

Bank 48

 

Bank 63

Memory assignment

Binary outputs slave 1 to 31 or slave 1A to 31A

reserved

Command data

reserved

Binary outputs slave 1B to 31B

Analog outputs slave 1 to 31

reserved

Figure 2-5

Bank 0: Binary output data of the AS-i slaves 1 to 31 or 1A to 31A

Via these analog output words, you can access the binary outputs of the standard slaves or A slaves (slaves with the extended addressing mode).

The structure of the output data is described in Section 3.1.

Bank 1: reserved

This area is reserved for later expansions and cannot be used.

SIMATIC NET CP 243-2 AS-i Master

2-21

C79000-G8976-C142/02

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Image 47
Siemens CP 243-2 installation instructions Analog Output Area, Assignment of the Output Areas, Bank 1 reserved