Influence Of The Range Of Analog Values - Siemens SIMATIC Manual

5.4.2

Influence of the range of analog values

influence of errors on analog modules with diagnostics functions
Errors may lead to an entry in the diagnostics buffer and trigger a diagnostics interrupt at
analog modules with diagnostics function and corresponding parameter settings.
Influence of the range of values on the analog input module
The reaction of analog modules is determined by the actual input values within the range of
values.
Table 5- 42 Reaction of analog input modules as a function of the actual analog value within the range of values
Measured value with- Input value
in
Rated range Measured value
Over- Measured value
shoot/undershoot
range
Overflow 7FFF
Underflow 8000
beyond programmed Measured value
limit
1) , only supported by modules with diagnostics function, and depending on parameter settings
Influence of the range of values on the analog output module
The reaction of analog modules is determined by the actual output values within the value
range.
Table 5- 43 Reaction of analog output modules as a function of the actual analog value within the range of values
Output value within Output value
Rated range CPU value
Over- CPU value
shoot/undershoot
range
Overflow 0 signal
Underflow 0 signal
S7-300 Module data
Manual, 06/2017, A5E00105505-AJ
SF LED
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5.4 Response of the analog modules
Diagnostics
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Entry is made 1
1
Entry is made
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Diagnostics
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Principles of analog modules
Interrupt
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Diagnostics interrupt 1)
1)
Diagnostics interrupt
Process interrupt 1)
Interrupt
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