Siemens SIMATIC ET 200SP Manual page 75

As-interface master cm as-i master st 3rk7137-6sa00-0bc1
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Note
Exceptions
The automatic address programming function is not available for the following devices,
because the identifications of each internal slave are identical (IO code, ID code, ID2 code,
and ID1 code).
• Module K60 with 8 DI (3RK1200-0DQ00-0AA3, 3RK2200-0DQ00-0AA3,
3RK2200-1DQ00-1AA3)
• Safety-related module K45 with 4 F-DI (3RK1205-0CQ00-0AA3).
Detection of a defective AS-i slave
An illuminated "AUP" LED signals the following in "protected operation":
● Slave failure was detected:
– Exactly one slave has failed, or
– A device containing multiple different slaves has failed, or
– Multiple slaves or devices have failed, each of the failed slaves having a different
● Automatic address programming by the AS-i master is possible.
If an AS-i slave fails, the AS-i master indicates the address of the failed slave via the
"SL_Xy (A)" and "SL_xY (B)" LEDs.
If a device with multiple internal slave addresses fails, the AS-i master indicates the failure of
multiple slaves.
Replacement of a defective AS-i slave
● Replace the defective AS-i slave with an identical AS-i slave with address "0" (setting in
delivery state).
● Replace the defective AS-I device containing multiple internal slave addresses with an
identical AS-i device with address "0" on all internal slaves (setting in delivery state).
Note
Replacement of a defective AS-i slave
Only one address "0" may be configured on the bus at any one time. If you want to
replace several slaves or devices, you must replace them one after the other with the AS-
i master switched on.
For the new slave or device, the AS-i master programs the address or addresses of the
original failed device.
The LEDs "AUP" and "CER" go out once all slaves have been correctly replaced.
AS-Interface master CM AS-i Master ST (3RK7137-6SA00-0BC1)
Manual, 07/2017, A5E02655262020A/RS-AD/004
8.5 Replacing a defective AS-i slave / automatic address programming
configuration
Alarms, faults and system events
75

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