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Command Interface

5-10

SIMATIC NET CP 243-2 AS-i Master

C79000-G8976-C142/02

General Structure of the Response Buffer

Depending on the command, the response buffer can extend over a maximum of

14 banks (bank 2–15 in the analog module) and a maximum of 224 bytes.

In the following description of the command interface, the start address 0 is

assumed for the analog output module of the CP to simplify byte numbering.

Table 5-5

Bank

Byte Meaning / Content

2 0 Command number (echo)

1 Command status

2 Response data

3 Response data

4 Response data

5 Response data

6 Response data

7 Response data

8 Response data

9 Response data

10 Response data

11 Response data

12 Response data

13 Response data

14 Response data

15 Response data

15 0 Response data

: :

15 Response data

1 2 ... 73 74 75 76 77 78 79 80 81 82 83 ... 149 150

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Siemens SIMATIC NET Manuale di Servizio Pagina 78