Siemens SIMATIC ET 200SP Manual page 39

Each HART variable consists of a 4-byte real value and a quality code byte. The quality code
describes the validity of the value; see section HART variables (Page 24) .
The assigned HART variables are automatically updated by the I/O module and can be used
directly in the user program.
Input area
If the HART variables are configured or parameterized, then HART variables begin directly
after the value status, i.e. from IB x + 1.
IB x +
0 *
1
:
:
* This additional byte offsets the HART range by one byte.
The structure of the HART range is dependent on the configuration:
● With the configuration with 4 variables, the range is 20 bytes long and always contains 4
HART variables, each with 4 bytes value and a byte quality code.
Table 6-1
IB x +
1
:
4
5
6
:
9
10
:
:
:
16
:
19
20
Output range
QB x +
0...1
2...3
4...5
6...7
Analog Output Module AQ 4xI HART HF
Manual, 05/2019, A5E35098013-AA
Meaning
- - -
HART range: Configuration
HART range
Value
QC
Value
QC
Value
QC
Meaning
Analog value of analog output 0 (AQ0)
Analog value of analog output 1 (AQ1)
Analog value of analog output 2 (AQ2)
Analog value of analog output 3 (AQ3)
- QAQ3
HART range
Configured HART variable 0
Configured HART variable 1
Configured HART variable 3
Configuring/address space
6.2 Address space
QAQ2 QAQ1 QAQ0
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