Siemens Simatic ET 200SP User Manual page 25

Parameters/address space
4.4 Scalable measuring range
Rules
● 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, various value ranges result (
● The scalable measuring range is limited by underflow and overflow of the underlying
measuring range:
– It is clipped at the underflow when it falls below the limit.
– It is clipped at the overflow when it exceeds the limit (
Example
The following example illustrates the effect of scalable measuring ranges:
①
Scalable measuring range with 2 decimal places in hexadecimal S7 format
②
Scalable measuring range with 3 decimal places in hexadecimal S7 format
③
Scalable measuring range which is cut off at the overflow of the underlying measuring range (clipping)
Figure 4-2 Examples of scalable measuring ranges
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①
③
).
Analog input module AI 4xTC HS (6ES7134-6JD00-0DA1)
Manual, 03/2019, A5E42405270-AB
②
, ).