Siemens SIMATIC S7-300 Module data User Manual

Analog modules
6.8 Analog input module SM 331; AI 2 x 12 bit; (6ES7331-7KB02-0AB0)
S7-300 Automation System Module data
Manual, 08/2006, A5E00105505-04
6-69
6.8.1 Measuring methods and ranges
Introduction
Module SM 331; AI 2 x 12 Bit has a measuring range module. Use the measuring range
module and the "measuring method" parameter in
STEP 7 to set the measuring methods
and measuring ranges. The "voltage" measuring method and "± 10V" measuring range are
set by default at the module. You can those default settings without having to program the
SM 331; AI 2 x 12 Bit in
STEP 7 .
Measuring range module
Reposition the measuring range module to suit the measuring method and range (see the
chapter
Setting measuring methods and ranges of analog input channels ). The necessary
settings are also available on the module's imprint.
Table 6-21 Measuring methods and ranges
Selected measuring method Measuring range
(type of sensor)
Measuring range module settings
± 80 mV
± 250 mV
± 500 mV
± 1000 mV
A
V: Voltage
± 2.5 V
± 5 V
1 to 5 V
± 10 V
B
TC-I: Thermocouple
(internal comparison) (thermal voltage
measurement)
TC-E: Thermocouples
(external comparison)
(thermal voltage measurement)
Type N [NiCrSi-NiSi]
Type E [NiCr-CuNi]
Type J [Fe-CuNi]
Type K [NiCr-Ni]
Type L [Fe-CuNi]
A
2DMU: Current (2-wire transducer) 4 mA to 20 mA D
4DMU: Current (4-wire transducer) ± 3.2 mA
± 10 mA
0 mA to 20 mA
4 mA to 20 mA
± 20 mA
C
R-4L: Resistance
(4-wire connection)
150 Ω
300 Ω
600 Ω
A

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)