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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.
Sensor
RTD temperature probe
Thermocouple
Resistance
transmitter
Resistance/potentiometer
Current 0 ... 20 mA
Current 4 ... 20 mA
Voltage 0 ... 70 mV
Voltage 0 ... 1 V
Voltage -1 ... +1 V
Voltage 0 ... +10 V
Voltage -10 ... +10 V
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.
9 Configuration – in setup program only
Lower limit
0 Ω
0 mV
0 %
0 Ω
0 mA
3.8 mA
-0.875 mV
-0.0125 V
-1.025 V
-0.125 V
-10.25 V
Upper limit
Comment
400 Ω or
Upper limit depending on configura-
4000 Ω
tion
100 mV
100 %
Loop generation as a percentage of
the total resistance (max. 4000 Ω)
400 Ω or
Upper limit depending on configura-
4000 Ω
tion
20.625 mA
Underrange is not detected.
20.5 mA
72.1875 mV
1.03125 V
1.0625 V
10.3125 V
10.625 V
227
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