
B8976111/02
AS-i Master Module CP 142-2
4-13
4.2.1.11 Set_Offline_Mode
Meaning
This call switches between the online and offline mode.
The OFFLINE bit is not permanently stored, in other words, during the startup/restart the bit is set to
ONLINE again.
In the offline mode, the CP only processes jobs from the user. There is no cyclic data exchange.
The online mode is the normal situation with the AS-i master. Here, the following jobs are processed
cyclically:
±
During the data exchange phase, the fields of the output data are transferred to the slave
outputs for all slaves in the LAS. The addressed slaves transfer the values of the slave
inputs to the master when the transfer was free of errors.
±
This is followed by the inclusion phase in which there is a search for the slaves
connected to the AS-i and newly added slaves are entered in the LDS or LAS.
±
In the management phase, jobs from the user such as writing parameters are executed.
Structure of the job data in the send buffer
Bit 7
Bit 0
Byte 0
0 H
A H
Byte 1
0 H
Mode (0=online
1=offline)
Summary of Contents for SIMATIC NET CP 142-2
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Page 70: ...B8976111 02 AS i Master Module CP 142 2 7 2 ...
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Page 78: ...AS i Master Module CP 142 2 B8976111 02 B 2 ...
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