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8.2.5.5
Read Output Data Image (READ_ODI)
With this call, the output data values of all AS-i slaves is being read out of the AS-i/
PROFIBUS gateway.
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8.2.5.6
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, 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.
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.
Subject to reasonable modifications due to technical advances.
Pepperl+Fuchs Group · Tel.: Germany (6 21) 7 76-0 · USA (3 30) 4 25 35 55 · Singapore 7 79 90 91 · Internet http://www.pepperl-fuchs.com
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slave 2A
slave 30B
AS-i/PROFIBUS Gateway
Command Interface
Response
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result
Request
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circuit
Response
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result
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Copyright Pepperl+Fuchs, Printed in Germany
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slave 1A
slave 3A
slave 31B
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