Analog input modules record process signals such as pressure or temperature and forward them in digitalized 16-bit format to the PLC. They are suitable for measuring voltage, current (2-wire and 4-wire transducers), and resistance, as well as for the connection of resistance thermometers.

Analog output modules convert a 16-bit digital value into a current or a voltage and output this to the process. They are suitable, for example, for controlling proportional valves or small servo drives.

The 30 mm wide I/O modules are especially suitable for use in extremely confined spaces, have settable parameters and diagnostic functions and can thus be adapted flexibly to the respective process requirements.

Siemens Analog I/O Modules SIMATIC ET 200AL Product Specifications:

Article number		6ES7144-5KD00-0BA0
		ET 200AL, AI 4xU/I/RTD, 4xM12
General information
Product type designation		AI 4xU/I/RTD
HW functional status		FS04
Firmware version		V1.0.x
Product function
● I&M data		Yes; I&M0 to I&M3
Engineering with
● STEP 7 TIA Portal configurable/integrated from version		STEP 7 V13 SP1 or higher
● STEP 7 configurable/integrated from version		From V5.5 SP4 Hotfix 3
● PROFIBUS from GSD version/GSD revision		GSD as of Revision 5
● PROFINET from GSD version/GSD revision		GSDML V2.3.1
Supply voltage
power supply according to NEC Class 2 required		No
Load voltage 1L+
● Rated value (DC)		24 V
● permissible range, lower limit (DC)		20.4 V
● permissible range, upper limit (DC)		28.8 V
● Reverse polarity protection		Yes; against destruction
Input current
Current consumption (rated value)		35 mA; without load
from load voltage 1L+ (unswitched voltage)		4 A; Maximum value
from load voltage 2L+, max.		4 A; Maximum value
Encoder supply
Number of outputs		4
24 V encoder supply
● Short-circuit protection		Yes; per channel, electronic
● Output current, max.		0.5 A; Per channel, total current of all channels max. 1 A
Power loss
Power loss, typ.		1.5 W
Analog inputs
Number of analog inputs		4
● For current measurement		4
● For voltage measurement		4
● For resistance/resistance thermometer measurement		4
● For thermocouple measurement
permissible input voltage for voltage input (destruction limit), max.		30 V
permissible input current for current input (destruction limit), max.		50 mA
Constant measurement current for resistance-type transmitter, typ.
Cycle time (all channels), min.		8 ms
Technical unit for temperature measurement adjustable		Yes; Degrees Celsius / degrees Fahrenheit / Kelvin
Input ranges (rated values), voltages
● 0 to +10 V		Yes
— Input resistance (0 to 10 V)		10 MΩ
● 1 V to 5 V		Yes
— Input resistance (1 V to 5 V)		10 MΩ
● -80 mV to +80 mV
— Input resistance (-80 mV to +80 mV)
Input ranges (rated values), currents
● 0 to 20 mA		Yes
— Input resistance (0 to 20 mA)		50 Ω
● 4 mA to 20 mA		Yes
— Input resistance (4 mA to 20 mA)		50 Ω
Input ranges (rated values), thermocouples
● Type B
— Input resistance (Type B)
● Type C
— Input resistance (Type C)
● Type E
— Input resistance (Type E)
● Type J
— Input resistance (type J)
● Type K
— Input resistance (Type K)
● Type L
— Input resistance (Type L)
● Type N
— Input resistance (Type N)
● Type R
— Input resistance (Type R)
● Type S
— Input resistance (Type S)
● Type T
— Input resistance (Type T)
● Type U
— Input resistance (Type U)
Input ranges (rated values), resistance thermometer
● Ni 100		Yes; Standard/climate
— Input resistance (Ni 100)		10 MΩ
● Ni 1000
— Input resistance (Ni 1000)
● Pt 100		Yes; Standard/climate
— Input resistance (Pt 100)		10 MΩ
● Pt 1000
— Input resistance (Pt 1000)
Input ranges (rated values), resistors
● 0 to 150 ohms		Yes
— Input resistance (0 to 150 ohms)		10 MΩ
● 0 to 300 ohms		Yes
— Input resistance (0 to 300 ohms)		10 MΩ
Thermocouple (TC)
Temperature compensation
— parameterizable
— internal temperature compensation
— external temperature compensation with compensations socket
— dynamic reference temperature value
— fixed reference temperature
Cable length
● shielded, max.		30 m
Analog value generation for the inputs
Measurement principle		integrating
Integration and conversion time/resolution per channel
● Resolution with overrange (bit including sign), max.		16 bit
● Integration time, parameterizable		Yes; channel by channel
● Integration time (ms)		0,3 / 16,7 / 20 / 60
● Basic conversion time, including integration time (ms)
— additional conversion time for wire-break monitoring
— additional conversion time for resistance measurement
● Interference voltage suppression for interference frequency f1 in Hz		3 600 / 60 / 50 / 16.7
● Conversion time (per channel)		2 / 18 / 21 / 61 ms
Smoothing of measured values
● parameterizable		Yes
● Step: None		Yes; 1x cycle time
● Step: low		Yes; 4x cycle time
● Step: Medium		Yes; 16x cycle time
● Step: High		Yes; 32x cycle time
Encoder
Connection of signal encoders
● for voltage measurement		Yes
● for current measurement as 2-wire transducer		Yes
● for current measurement as 4-wire transducer		Yes
● for resistance measurement with two-wire connection		Yes
● for resistance measurement with three-wire connection		Yes
● for resistance measurement with four-wire connection
Errors/accuracies
Linearity error (relative to input range), (+/-)		0.025 %
Temperature error (relative to input range), (+/-)		0.01 %/K
Crosstalk between the inputs, max.		-70 dB
Repeat accuracy in steady state at 25 °C (relative to input range), (+/-)		0.01 %
Temperature error of internal compensation
Operational error limit in overall temperature range
● Voltage, relative to input range, (+/-)		0.35 %
● Current, relative to input range, (+/-)		0.45 %
● Resistance, relative to input range, (+/-)		0.25 %
● Resistance thermometer, relative to input range, (+/-)		0.25 %
● Thermocouple, relative to input range, (+/-)
Basic error limit (operational limit at 25 °C)
● Voltage, relative to input range, (+/-)		0.25 %
● Current, relative to input range, (+/-)		0.25 %
● Resistance, relative to input range, (+/-)		0.15 %
● Resistance thermometer, relative to input range, (+/-)		0.15 %
● Thermocouple, relative to input range, (+/-)
Interference voltage suppression for f = n x (f1 +/- 0.5 %), f1 = interference frequency
● Series mode interference (peak value of interference < rated value of input range), min.		40 dB
Interrupts/diagnostics/status information
Alarms
● Diagnostic alarm		Yes; Parameterizable
● Limit value alarm		Yes; Parameterizable
Diagnoses
● Wire-break		Yes; at 4 mA to 20 mA and 1 V to 5 V
● Short-circuit		Yes; Encoder supply to M, channel by channel
● Overflow/underflow		Yes
Diagnostics indication LED
● Channel status display		Yes; green LED
● for module diagnostics		Yes; green/red LED
Potential separation
between the load voltages		Yes
Potential separation channels
● between the channels		No
● between the channels and backplane bus		Yes
● between the channels and the power supply of the electronics		No
Isolation
Isolation tested with		707 V DC (type test)
Degree and class of protection
IP degree of protection		IP65/67
Standards, approvals, certificates
Suitable for safety-related tripping of standard modules		Yes; From FS02
Suitable for applications according to AMS 2750
Suitable for applications according to CQI-9
Highest safety class achievable for safety-related tripping of standard modules
● Performance level according to ISO 13849-1		PL d
● Category according to ISO 13849-1		Cat. 3
● SIL acc. to IEC 62061		SIL 2
● remark on safety-oriented shutdown		https://support.industry.siemens.com/cs/de/en/view/39198632
Ambient conditions
Ambient temperature during operation
● min.		-30 °C
● max.		55 °C
connection method / header
Design of electrical connection for the inputs and outputs		M12, 5-pole
Design of electrical connection for supply voltage		M8, 4-pole
ET-Connection
● ET-Connection		M8, 4-pin, shielded
Dimensions
Width		30 mm
Height		159 mm
Depth		40 mm
Weights
Weight, approx.		168 g