Siemens SIMATIC S7-300 Reference Manual page 505
Programmable logic controllers module data
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Data record 1 structure
The figure below shows the structure of data record 1 for the parameters of the
analog output modules.
You activate the diagnostics interrupt enable by setting the corresponding bit in
byte 0 to "1".
Byte 0
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
Byte 6
Byte 7
Byte 8
Byte 9
Byte 10
Byte 11
Byte 12
Byte 13
Figure A-17
Programmable Logic Controllers S7-300 Module Data
A5E00105505-03
7 6
0
Diagnostics interrupt enable
7
3 2 1
0
Channel group 0
Channel group 1
Channel group 2
Channel group 3
7
4 3
0
Output Range
Output type
Data Record 1 for Parameters of the Analog Output Modules
Parameter Sets for Signal Modules
Behavior on CPU STOP
0 = Outputs
de-energized
1 = Hold last value
Output channel group 0
Output channel group 1
Output channel group 2
Output channel group 3
Refer to Table A-29
High-Order Byte
Substitute value channel
Low-Order Byte
group 0
High-Order Byte
Substitute value channel
Low-Order Byte
group 1
High-Order Byte
Substitute value channel
Low-Order Byte
group 2
High-Order Byte
Substitute value channel
Low-Order Byte
group 3
A-37
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