Siemens SIMATIC S7-300 Module data - Page 330

Analog Modules
4-124
Programmable Logic Controllers S7-300 Module Data
A5E00105505-03
Table 4-67 Measuring Ranges of the SM 331; AI 8 x 12 bits, continued
Method Selected DescriptionMeasuring Range
Module Setting
Measuring Range
(Type of Sensor)
2DMU: Current (2-wire
transmitter)
4 to 20 mA D You will find the digitized
analog values in Section
4.3.1 in the current
4DMU: Current (4-wire
transmitter)
" 3.2 mA
" 10 mA
0 to 20 mA
4 to 20 mA
" 20 mA
C
4.3.1 in the current
measuring range
R-4L: Resistors
(four-conductor
connection)
150 
300 
600 
A You will find the digitized
analog values in Section
4.3.1 in the resistance
measuring range
TC-IL: Thermocouple
(linear, internal
compensation)
(temperature
measurement)
Type N [NiCrSi-NiSi]
Type E [NiCr-CuNi]
Type J [Fe-CuNi]
Type K [NiCr-Ni]
Type L Fe-CuNi
A You will find the digitized
analog values in Section
4.3.1 in the temperature
range
The characteristics are
linearized:
TC-EL: Thermocouple
(linear, external
compensation)
(temperature
measurement)
Type L [Fe-CuNi]
The characteristics are
linearized:
• Pt 100 to DIN IEC 751
• Ni 100 according to IEC
DIN 43760
• Thermocouple to DIN
RTD-4L: Bulb resistor
(linear, four-conductor
connection)
(temperature
measurement)
Pt 100 climate
Ni 100 climate
Pt 100 standard
Ni 100 standard
A
Thermocouple to DIN
584, type L to
DIN 43710.
Default Settings
The default settings of the module in STEP 7 are the “voltage” measuring method
and the “" 10 V” measuring range. You can use this combination of measuring
method and measuring range without parameterizing the SM 331; AI 8 x 12 bits
with STEP 7.
Wire-Break Check
The wire-break check is intended primarily for temperature measurements
(thermocouples and bulb resistors.