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Scalable Measuring Range - Siemens SIMATIC ET 200SP Manual

Analog input module ai 8xrtd/tc 2-wire hf 6es7134-6es7134-6jf00-0ca1.
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4.4

Scalable measuring range

Introduction
The scalable measuring range is available for the temperature measuring ranges of thermal
resistors (RTD) standard and thermocouples. The measuring ranges for voltage, resistor and
thermal resistor climatic are not supported.
The scalable measuring range is valid for the following ranges:
● Nominal range
● Underrange
● Overrange
Function
The scalable measuring range is a limited section of a measuring range supported by the
module.
It allows you to increase the resolution for a configurable section.
● The "Measuring range resolution" parameter determines the resolution to 2 or 3 decimal
places.
● The "Measuring range center" parameter determines the temperature over which the
scalable measuring range is symmetrically spanned.
Value ranges
Table 4- 8
Scalable measuring range
Overflow
High limit
Measuring range center
Low limit
Underflow
To obtain an absolute temperature, the measuring range center in the application 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
are correspondingly mapped to the bipolar input ranges in S7 format. Underflow / overflow is
also formed in accordance with the limits of S7.
Analog input module AI 8xRTD/TC 2-wire HF (6ES7134-6JF00-0CA1)
Manual, 09/2018, A5E32942580-AB
Value ranges
Measuring range resolution
2 decimal places
>325.11
325.11
0
-325.12
<-325.12
Parameters/address space
4.4 Scalable measuring range
3 decimal places
>32.511
32.511
0
-32.512
<-32.512
Values hex.
7FFF
H
7EFF
H
0
H
8100
H
8000
H
31

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