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3 read input data image (read_idi), 4 write output data image (write_odi), Read input data image (read_idi) – EUCHNER AS-i 3.0 Command Interface User Manual

Page 54: Write output data image (write_odi)

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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

Kohlhammerstraße 16, D-70771 Leinfelden-Echterdingen

Tel. +49/711/7597-0, Fax +49/711/753316

54

4.6.3

Read input data image (READ_IDI)

With this call, the input data values of all AS-i slaves are read out of the AS-i Mas-
ter in addition to the cyclic data exchange. Though the command READ_IDI trans-
mits all execution control flags (byte 3 and byte 4).

Pok Periphery_Ok

S0

LDS.0

AAs Auto_Address_Assign

AAv Auto_Address_Available

CA

Configuration_Active

NA

Normal_Operation_Active

APF APF

OR

Offline_Ready

Cok Config_Ok

4.6.4

Write output data image (WRITE_ODI)

With this call the output data values of all AS-i slaves are written in addition to the
cyclic data exchange.

Request

byte

2

7

2

6

2

5

2

4

2

3

2

2

2

1

2

0

1

41

16

2

T

circuit

Response

byte

2

7

2

6

2

5

2

4

2

3

2

2

2

1

2

0

1

41

16

2

T

result

3

Pok

4

OR

APF

NA

CA

AAv

AAs

s0

Cok

5

slave 1A

6

slave 2A

slave 3A

36

slave 30B

slave 31B

Request

byte

2

7

2

6

2

5

2

4

2

3

2

2

2

1

2

0

1

42

16

2

T

circuit

3

slave 1A

4

slave 2A

slave 3A

34

slave 30B

slave 31B