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7.2.2.7
Set operating mode (Set_Operation_Mode)
Meaning
You can choose between "Configuration mode" and "Protected mode" with this call.
In protected mode (operating mode), only those AS-i slaves are activated that are marked in
the LPS and whose actual and planned configurations match, i.e. if the I/O configuration and
the ID codes of the detected AS-i slaves are identical to the configured values.
In configuration mode, all the detected AS-i slaves are activated (with the exception of
AS-i slave "0"). AS-i slaves which differ in their actual and planned configurations are also
activated.
The bit "OPERATING MODE" is saved in non-volatile memory, i.e. its setting is retained
even after start-up / restart.
The following bit assignment applies to the operating mode:
● Protected mode: "0"
● Configuration mode: "1"
On changeover from configuration mode to protected mode, the AS-i master is restarted
(transition to the offline phase and subsequent changeover to online mode).
Note
If an AS-i slave with the operating address 0 is entered in the LDS, the AS-i master CM
1243-2 cannot switch from configuration mode to protected mode.
Structure of the utility WRREC − Index 17
Byte
Bit 7
0
1
2
0
3
AS-i master CM 1243-2 and AS-i data decoupling unit DCM 1271 for SIMATIC S7-1200
Manual, 04/2013, A5E02655230010A/RS-AA/003
Bit 6
Bit 5
0
0
7.2 Description of the AS-i line calls and AS-i slave calls
Meaning
Bit 4
Bit 3
Version_hi = 0x00
Version_lo = 0x00
0
0
Reserved 0x00
Using the data record interface
Bit 2
Bit 1
0
0
Bit 0
Mode
73
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