Euchner AS-i 3.0 Command Interface Manual do Utilizador descarregar pdf (Página 17)

AS-i 3.0 Command Interface Commands of the Command Interface

Subject to reasonable modifications due to technical advances Id.-No.: 102875 Issue date - 3.12.2007 EUCHNER GmbH + Co. KG

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If i ≡ 0, then the string is being transferred to the slave.

4.2.3 RD_74_75_PARAM

With this function the parameter string of a slave according to profile S-7.4 is being

read or the slave response according to profile S-7.5 is being read.

If it is about a slave according to profile 7.5, so have the data in the response buffer

the following meaning:

FFh 00

: Transfer is still active

FFh xx

: Transfer finished with error

The first byte in the buffer not equal FF

: slave response. The response is in the

same form registered in the buffer and transmitted over AS-i.

Since the string can be longer than the command interface, it is written into the

buffer. The content of the buffer can read in parts from index i.

The first byte of the buffer is the length of the read string.

If i ≡ 0, the string is being read from the slave, otherwise the function responses

out of the memory; the data can be read consistently.

Request

byte

15A

2T – circuit

3 slave address

6 buffer byte i

……

n+5 buffer byte i+n-1

Response

byte

15A

2T results

Request

byte

15B

2T – circuit

3 slave address

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 ... 97 98

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Euchner AS-i 3.0 Command Interface Manual do Utilizador Página 17