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5.5
Address space
Abbreviations
• "IB" stands for input byte, i.e. the module start address in the input area
• "QB" stands for output byte, i.e. the module start address in the output area
• "QAIn" stands for value status (QI) of the analog input "n"
"Value status" bit
For each input signal, the F-AI 8xI 2-/4-wire HART HA module provides information on its validity,
the "value status" (qualifier bit). The value status is stored in the process image of the inputs.
In S7 F/FH systems, you may only access the addresses occupied by user data (AIx). The value
status is automatically processed by the F-channel drivers.
Regardless of the diagnostics enables, each "value status" provides information about the
validity of the corresponding process value.
Address space
The following tables show the allocation of the address space of the I/O module.
Input area
IB x +
0...1
:
:
14...15
16
17...21
x = module start address
Output range
QB x + 0...4
x = module start address
F-AI 8xI 2-/4-wire HART HA
Equipment Manual, 09/2021, A5E50557845-AA
7
6
5
Analog value, analog input 0
:
:
Analog value, analog input 7
QAI7
QAI6
QAI5
PROFIsafe trailer (PROFIsafe profile V2.6.1)
PROFIsafe trailer (PROFIsafe profile V2.6.1)
4
3
2
QAI4
QAI3
QAI2
Parameters/address space
5.5 Address space
1
0
QAI1
QAI0
35
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