Siemens SIMATIC S7-300 Module data Reference Manual

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.

Siemens SIMATIC S7-300 Module data Specifications

General

Series	S7-300
Manufacturer	Siemens
Protection Class	IP20
System	SIMATIC S7-300
Digital Inputs	Varies by module
Digital Outputs	Varies by module
Analog Inputs	Varies by module
Analog Outputs	Varies by module
Central Processing Unit	Varies by CPU model
Supply Voltage	24V DC or 120/230V AC
CPU Type	Varies (e.g., CPU 312, CPU 315, etc.)
Memory	Varies by CPU model
Communication Interfaces	MPI, PROFIBUS
Programming Languages	LAD, FBD, STL, SCL, GRAPH
Operating Temperature	0°C to 60°C
Storage Temperature	-40°C to 70°C
Relative Humidity	10% to 95% (non-condensing)