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SM 1234 analog input/output module

Article number		6ES7234-4HE32-0XB0
		ANALOG I/O SM 1234, 4AI/2AO
General information
Product type designation		SM 1234 A I4x13 bit AQ 2x14 bit
Supply voltage
Rated value (DC)
? 24 V DC		Yes
Input current
Current consumption, typ.		60 mA
from backplane bus 5 V DC, typ.		80 mA
Power loss
Power loss, typ.		2 W
Analog inputs
Number of analog inputs		4; Current or voltage differential inputs
permissible input voltage for current input (destruction limit), max.		± 35 V
permissible input voltage for voltage input (destruction limit), max.		35 V
permissible input current for voltage input (destruction limit), max.		40 mA
permissible input current for current input (destruction limit), max.		40 mA
Cycle time (all channels) max.		625 µs
Input ranges
? Voltage		Yes; ±10V, ±5V, ±2.5V
? Current		Yes; 4 to 20 mA, 0 to 20 mA
Input ranges (rated values), voltages
? -10 V to +10 V		Yes
? -2.5 V to +2.5 V		Yes
? -5 V to +5 V		Yes
Input ranges (rated values), currents
? 0 to 20 mA		Yes
? 4 mA to 20 mA		Yes
Analog outputs
Number of analog outputs		2; Current or voltage
Output ranges, voltage
? -10 V to +10 V		Yes
Output ranges, current
? 0 to 20 mA		Yes
? 4 mA to 20 mA		Yes
Load impedance (in rated range of output)
? with voltage outputs, min.		1 000 ?
? with current outputs, max.		600 ?
Analog value generation for the inputs
Measurement principle		Differential
Integration and conversion time/resolution per channel
? Resolution with overrange (bit including sign), max.		12 bit; + sign
? Integration time, parameterizable		Yes
? Interference voltage suppression for interference frequency f1 in Hz		40 dB, DC to 60 V for interference frequency 50 / 60 Hz
Smoothing of measured values
? parameterizable		Yes
? Step: None		Yes
? Step: low		Yes
? Step: Medium		Yes
? Step: High		Yes
Analog value generation for the outputs
Integration and conversion time/resolution per channel
? Resolution (incl. overrange)		Voltage: 14 bits; Current : 13 bits
Errors/accuracies
Temperature error (relative to input range), (+/-)		25 °C ±0.1%, to 55 °C ±0.2% total measurement range
Temperature error (relative to output range), (+/-)		25 °C ±0.3%, to 55 °C ±0.6% total measurement range
Basic error limit (operational limit at 25 °C)
? Voltage, relative to input range, (+/-)		0.1 %
? Current, relative to input range, (+/-)		0.1 %
? Voltage, relative to output range, (+/-)		0.3 %
? Current, relative to output range, (+/-)		0.3 %
Interference voltage suppression for f = n x (f1 +/- 1 %), f1 = interference frequency
? Common mode voltage, max.		12 V
Interrupts/diagnostics/status information
Alarms		Yes
Diagnostic functions		Yes
Alarms
? Diagnostic alarm		Yes
Diagnostic messages
? Monitoring the supply voltage		Yes
? Wire-break		Yes
? Short-circuit		Yes
Diagnostics indication LED
? for status of the inputs		Yes
? for status of the outputs		Yes
? for maintenance		Yes
Potential separation analog outputs
? between the channels and the power supply of the electronics		No
Degree and class of protection
Degree of protection acc. to EN 60529
? IP20		Yes
Standards, approvals, certificates
CE mark		Yes
CSA approval		Yes
FM approval		Yes
RCM (formerly C-TICK)		Yes
Marine approval
? Marine approval		Yes
Ambient conditions
Free fall
? Fall height, max.		0.3 m; five times, in product package
Ambient temperature during operation
? permissible temperature range		-20 °C to +60 °C horizontal mounting, -20 °C to 50 °C vertical mounting, 95% humidity, non-condensing
? min.		-20 °C
? max.		60 °C
Pollutant concentrations
— SO2 at RH < 60% without condensation		S02: < 0.5 ppm; H2S: < 0.1 ppm; RH < 60% condensation-free
Connection method
required front connector		Yes
Mechanics/material
Enclosure material (front)
? Plastic		Yes
Dimensions
Width		45 mm
Height		100 mm
Depth		75 mm
Weights
Weight, approx.		220 g

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