Product overview
2.2 Functions
Analog Input Module AI 8xU/R/RTD/TC HF (6ES7531-7PF00-0AB0)
14 Manual, 09/2016, A5E36647959-AB
Typical areas of applications
Temperature measurements and temperature controls with high resolution save energy and
are required for:
● Manufacturing of special glass
● Manufacturing of semiconductors
● Heat processes / heat treatment in metals for the aerospace industry.
Table 2- 2 Value ranges for the scalable measuring range
Measuring range resolution
Measuring range center 0 0 0
H
Underflow <-325.12 <-32.512 8000
H
To obtain the absolute temperature, the measuring range center in the user program (as
offset) must be calculated with the value of the user data of the scalable measuring range.
The measuring range center is always output in the user data as the value "0". The user data
is correspondingly mapped to the bipolar input ranges in S7 format. Underflow/overflow is
also formed in accordance with the limits of S7.
● The measuring range center must be within the nominal range of the underlying
measuring range. It is specified in integers.
● The scalable measuring range is spanned symmetrically over the measuring range
center. Depending on the resolution, different value ranges result.
● The scalable measuring range is limited by underflow and overflow of the underlying
measuring range:
If the low limit is violated, the scaled measuring range is cut off at the underflow.
If the high limit is violated, the scaled measuring range is cut off at the overflow.
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