Euchner AS-i 3.0 Command Interface Instrukcja Użytkownika Pobierz pdf (Strona 51)

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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4.5.14 Set auto address enable (SET_AAE)

This call can enable or disable the "automatic address programming" function.

The AUTO_ADDR_ENABLE bit is stored permanently; in other words, it is re-

tained after a warm/hot restart on the AS-i master.

4.5.15 Change slave address (SLAVE_ADDR)

With this call, the AS-i address of an AS-i slave can be modified.

This call is mainly used to add a new AS-i slave with the default address "0" to the

AS-Interface. In this case, the address is changed from "AS-i slave address

old" = 0 to "AS-i slave address new”.

This change can only be made when the following conditions are fulfilled:

1. An AS-i slave with “AS-ii slave address old” exists.

2. If the old AS-i slave address is not equal to 0, an AS-i slave with address "0"

cannot be connected at the same time.

3. The "AS-i slave address new" must have a valid value.

4. An AS-i slave with "AS-i slave address new" must not exist.

Request

byte

10B

2T – circuit

3 Auto_Address_Enable

Response

byte

10B

2T result

When the AS-i slave address is changed, the AS-i slave is not reset, in other

words, the output data of the AS-i slave are retained until new data are

received at the new address.

Request

byte

10D

2T – circuit

3 – B source address

4 – B target address

1 2 ... 46 47 48 49 50 51 52 53 54 55 56 ... 97 98

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Euchner AS-i 3.0 Command Interface Instrukcja Użytkownika Strona 51