bihl+Wiedemann 1249 - Set_Data_Ex; Change Slave Address (SLAVE_ADDR)

AS-i/PROFIBUS Gateway PROFIBUS-DP
Subject to reasonable modifications due to technical advances Copyright Bihl+Wiedemann, Printed in Germany
Bihl+Wiedemann GmbH · D-68199 Mannheim · Phone +49-621-339960 · Fax +49-621-3392239 · Internet http://www.bihl-wiedemann.de
issue date 7.1.2002
74
The OFFLINE = TRUE bit is not permanently stored; in other words, following a
cold/warm restart, the AS-i/PROFIBUS Gateway is once again in the online mode.
The master changes to the Offline phase, if there is a 1 written in byte 3.
The master will change to online mode if there is a 0 written in byte 3.
8.3.2.20 SET_DATA_EX
8.3.2.21 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-i slave address old” exists.
2. If the old AS-i slave address is not equal to 0, then 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
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
10A
16
2 T – circuit
3Off-Line
Response
byte
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
10A
16
2T result
Request
byte
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
148
16
2 T – circuit
3 Data_Exchange_Active
Response
byte
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
148
16
2T result