Data Sets; Ds 100 Switch Duplicate Address Detection On/Off - Siemens SIMATIC ET 200SP Manual

Data sets

C.1

DS 100 Switch duplicate address detection on/off

Description
The duplicate address detection function can be activated/deactivated via the user program
by means of write access to data record DS 100.
For the CM AS-i Master firmware V1.0 the status is stored in the AS-i Master volatile
memory, i.e. if the AS-i voltage fails, duplicate address detection is deactivated.
For the CM AS-i Master firmware V1.0 and higher, duplicate address detection is adopted
according to the setting in HW Config or GSD after failure of the AS-i voltage.
Note
From firmware V1.1 onwards use the setting option via HW Config or GSD to activate
duplicate address detection. Data record DS 100 continues to exist for compatibility reasons.
Table C- 1 Structure of DS 100 write
Byte
Bit 7
0
1
2 0
3
Bit 0 = 0 Duplicate address detection is activated.
The setting for which AS-i voltage duplicate address detection is activated (possible for
FW V1.1 and higher) cannot be changed in this case.
See also
Duplicate address detection (Page 76)
AS-Interface master CM AS-i Master ST (3RK7137-6SA00-0BC1)
Manual, 07/2017, A5E02655262020A/RS-AD/004
Bit 6 Bit 5
= 1 Duplicate address detection is deactivated (default setting for FW V1.0).
Meaning
Bit 4 Bit 3
0
0
0
Bit 2 Bit 1
C
Bit 0
0 / 1
171