Siemens SIMATIC ET 200SP Manual page 100

Using the command interface
9.3 Command interface with controllers of other manufacturers
Table 9- 1 Coding of the status nibble
Status nibble (byte 1 of the digital input data)
Bit 7 Bit 6
1 0
1 1
1 1
0 0
0 0
0 0
0 1
0 1
1 0
1 0
100
Bit 5 Bit 4
0 0
1 0
0 0
1 0
0 1
1 1
0 1
1 1
0 1
1 1
Startup detection 1:
The status nibble switches between the values 1000
following a startup/restart of the AS-i master.
Initiation of a command by the user program is possible.
Startup detection 2:
The status nibble switches between the values 1000
following a startup/restart of the AS-i master.
Initiation of a command by the user program is possible.
Reserved for SIMATIC S7 use FB ASI_CTRL
Initiation of a command by the user program is possible.
The command processing is active
Initiation of a command by the user program is not possible.
Command processing has ended. An asynchronous read access can
be used to retrieve a 2-byte return value from the AS-i master.
Two cases are distinguished here:
The return value is 0: A command without response data has been
•
ended without errors.
The return value is a value other than 0: The command has been
•
ended with error (see "Return value in response buffer" table).
Initiation of a new command by the user program is possible.
Command processing has been ended without errors. An
asynchronous read access can be used to retrieve 1 byte of response
data from the AS-i master.
Initiation of a new command by the user program is possible.
Command processing has been ended without errors. An
asynchronous read access can be used to retrieve 4 bytes of
response data from the AS-i master.
Initiation of a new command by the user program is possible.
Command processing has been ended without errors. An
asynchronous read access can be used to retrieve 14 bytes of
response data from the AS-i master.
Initiation of a new command by the user program is possible.
Command processing has been ended without errors. An
asynchronous read access can be used to retrieve 16 bytes of
response data from the AS-i master.
Initiation of a new command by the user program is possible.
Command processing has been ended without errors. An
asynchronous read access can be used to retrieve 32 bytes of
response data from the AS-i master.
Initiation of a new command by the user program is possible.
AS-Interface master CM AS-i Master ST (3RK7137-6SA00-0BC1)
Meaning
B
B
Manual, 07/2017, A5E02655262020A/RS-AD/004
and 1110
B
and 1110
B