Siemens 181 Workshop Manual page 30

Rules
● The measuring range center must be within the nominal range of the underlying
● The scalable measuring range is spanned symmetrically over the measuring range
● The scalable measuring range is limited by underflow and overflow of the underlying
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 4-4 Examples of scalable measuring ranges
Analog input module AI 4xRTD/TC 2-/3-/4-wire HF (6ES7134-6JD00-0CA1)
Manual, 02/2014, A5E03573289-AD
measuring range. It is specified in integers.
center. Depending on the resolution, various value ranges result (
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 (
Parameters/address space
4.4 Scalable measuring range
① ②
, ).
③
).
29