Siemens PLC motor SM 1231, 4AI 16BIT

ANALOG INPUT SM 1231, 4AI 16BIT

Product information details
Technical data
CAx data

Technical data

		SIMATIC S7-1200, analog input, SM 1231,4 analog input, +/-10V,+/-5V,+/-2.5V,+/-1.25 or 0-20mA/4-20mA, 15 Bit + symbol Bit
General information
Product Type mark		SM 1231,AI 4x16 bit
Power supply voltage
Rating (DC)
● DC 24V		Yes
Input current
Current consumption, typical value		65 mA
DC 5V from backplane bus, typical value		80 mA
Power loss
Power loss, typical		1.8W
Analog input
Number of analog inputs		4; Current or voltage differential input
Current input allowable input voltage (damage limit), maximum		± 15V
Voltage input allowed input voltage (damage limit), maximum		± 35V
Input current allowed by voltage input (damage limit), maximum		40 mA; Limited by 1 megohm input resistance
Current input allowable input current (damage limit), maximum		40 mA
Cycle time (all channels), maximum		100 μs
Input range
● voltage		Yes; ± 10V,± 5V,± 2.5V or ± 1.25V
● Current		Yes; 4 to 20mA,0 to 20mA
● thermocouple		No
● Resistance thermometer		No
● Resistance		No
Input range (rated value), voltage
● -1.25V to +1.25V		Yes
● -10V to +10V		Yes
● input resistance (-10V to +10V)		≥ 1 megohm
● -2.5V to +2.5V		Yes
● input resistance (-2.5V to +2.5V)		≥ 1 megohm
● -5V to +5V		Yes
● input resistance (-5V to +5V)		≥ 1 megohm
Input range (rated value), current
● 0 to 20 mA		Yes
● 4 mA to 20 mA		Yes
Analog value composition at input
Integration and conversion time/resolution per channel
● resolution with overmodulation (digits including symbols), maximum		15 bit; + symbol
● parameterized integration time		Yes
● suppression of interference voltage at interference frequency f1 (unit Hz)		40 dB,DC to 60V for interference frequency 50 / 60Hz
Measured value filtering
● parameterizable		Yes
● level: None		Yes
● level: weak		Yes
● grade: Medium		Yes
● level: Strong		Yes
Error/precision
Temperature error (related to input range),(+/-)		25°C ± 0.1 % / ± 0.3% full measurement range
Basic error limit (Operation error limit at 25°C)
● voltage, related to the input range,(+/-)		0.1%
● Current, related to the input range,(+/-)		0.1%
Fault voltage suppression f = n x (f1 +/- 1 %),f1 = interference frequency
● parallel voltage, maximum		12V
Alarm/diagnosis/status information
Alarm		Yes
Diagnostic function		Yes
Alarm
● diagnostic alarm		Yes
Diagnostic Information
● power supply voltage monitoring		Yes
● disconnection		Yes
Diagnostic display LED
● used for input status		Yes
● for maintenance		Yes
Protection level and protection category
Protection level in accordance with EN 60529
● IP20		Yes
Standards, licenses, certificates
CE Mark		Yes
CSA license		Yes
FM license		Yes
RCM(C-TICK format)		Yes
Ship Construction Permit		Yes
Environmental requirements
Open Air
● maximum drop		0.3 m; Five, in the shipping package
Operating ambient temperature
● minimum		-20°C
● maximum value		60°C
● horizontal installation, minimum		-20°C
● horizontal installation, maximum		60°C
● vertical installation, minimum		-20°C
● vertical installation, maximum		50°C
Ambient temperature during transportation/storage
● minimum		-40°C
● maximum value		70°C
Air pressure meets IEC 60068-2-13 standard requirements
● operation, minimum		795 hPa
● operation, maximum		1 080 hPa
● storage/transportation, minimum		660 hPa
● storage/transportation, maximum		1 080 hPa
Relative air humidity
● non-condensing operation at 25°C, maximum		95%

● SO2 when RH < 60%, no condensation		Sulfur dioxide: < 0.5 ppm; Hydrogen sulfide: < 0.1 ppm;RH < 60% non-condensate
Connection Technology
Required front plug		Yes
Machinery/materials
Shell material (front)
● Plastic		Yes
Size
Width		45 mm
Height		100 mm
Depth		75 mm
Weight
Weight, about		180g
Last modification:		2018/5/22

Update time：20240927172008