227
9 Configuration – in setup program only
Measured value
The following table shows the admissible measured value range of the analog inputs as a function of the
selected sensor. These values represent the minimum and maximum input values of customer-specific
linearization.
NOTE!
The measured value is monitored for current and voltage signals. The current and voltage values stated
in the table are limits based on the NAMUR recommendation NE 43 (exception: lower limit for current
0 ... 20 mA). A measured value outside of these limits results in a deviation above or below the measur-
ing range (out of range).
Linearization
Depending on the selected linearization type, the definition range or value range of the linearization is
monitored.
chapter 9.11.1 "Formula", Page 228
chapter 9.11.2 "Grid values", Page 229
Linearized value
The linearized value is monitored with regard to the scaling range (start, end). The range of the linearized
values (possibly incl. offset) is thus delimited as follows:
Lower limit = Minimum (start, end) - |end - start| × 0.0125
Upper limit = Maximum (start, end) + |end - start| × 0.03125
NOTE!
A linearized value outside of these limits results in a deviation above or below the measuring range (out
of range).
NOTE!
A linearized value that represents a temperature value must be given only in °C.
Sensor Lower limit Upper limit Comment
RTD temperature probe 0 Ω 400 Ω or
4000 Ω
Upper limit depending on configura-
tion
Thermocouple 0 mV 100 mV
Resistance
transmitter
0 % 100 % Loop generation as a percentage of
the total resistance (max. 4000 Ω)
Resistance/potentiometer 0 Ω 400 Ω or
4000 Ω
Upper limit depending on configura-
tion
Current 0 ... 20 mA 0 mA 20.625 mA Underrange is not detected.
Current 4 ... 20 mA 3.8 mA 20.5 mA
Voltage 0 ... 70 mV -0.875 mV 72.1875 mV
Voltage 0 ... 1 V -0.0125 V 1.03125 V
Voltage -1 ... +1 V -1.025 V 1.0625 V
Voltage 0 ... +10 V -0.125 V 10.3125 V
Voltage -10 ... +10 V -10.25 V 10.625 V
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