Replacing A Defective As-I Slave / Automatic Address Programming - Siemens SIMATIC ET 200SP Manual

Alarms, faults and system events

8.5 Replacing a defective AS-i slave / automatic address programming

8.5 Replacing a defective AS-i slave / automatic address programming
Automatic address programming after failure of one or more AS-i slaves - replacement of AS-i slave
The "Automatic address programming" function allows you to easily replace defective
AS-i slaves.
Note
Automatic address programming
Automatic address programming is only possible if the AS-i master is operating in "protected
operation" and one or more AS-i slaves have failed.
If several AS-i slaves have failed, you must uniquely identify the failed slaves in the
configuration using the slave profile:
• IO code
• ID code
• ID2 code
• ID1 code
The automatic address programming function also supports slaves with the "CTT5" profile
(multi-address slaves) and AS-i devices that contain multiple internal slave addresses. This
requires each internal slave to have different identifications (IO code, ID code, ID2 code, and
ID1 code).
Note
The automatic address programming function does not work if two identical slaves have
failed.
Examples of devices with multiple internal slave addresses which support automatic address
programming:
● Module K60 with 8DI/2DO (3RK2400-1HQ00-0AA3)
● Motor Starter M200D AS-i Standard (3RK1325-...).
If no address has yet been assigned to these devices (delivery state), only one address "0"
is visible on the bus. The device automatically suppresses the other internal "0" addresses.
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AS-Interface master CM AS-i Master ST (3RK7137-6SA00-0BC1)
Manual, 07/2017, A5E02655262020A/RS-AD/004