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

Analog outputs 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.

All I/O devices have configurable parameters and diagnostic functions and can thus be freely adapted to the respective process requirements.

Siemens Analog I/O Devices SIMATIC ET 200eco PN Product Specifications:

Article number	6ES7144-6KD00-0AB0
	ET200eco PN, 8AI; 4 U/I; 4 RTD/TC 8xM12
General information
HW functional status
Firmware version
● FW update possible
Vendor identification (VendorID)	002AH
Device identifier (DeviceID)	0306H
Manufacturer ID according to ODVA (VendorID)
Device ID according to ODVA (Product code)
Product function
● I&M data
● Isochronous mode
● Prioritized startup
● Measuring range scalable
Engineering with
● STEP 7 TIA Portal configurable/integrated from version
● PROFINET from GSD version/GSD revision
● Multi Fieldbus Configuration Tool (MFCT)
Operating mode
● MSI
CiR – Configuration in RUN
Calibration possible in RUN
Supply voltage
Rated value (DC)	24 V
Reverse polarity protection	Yes
power supply according to NEC Class 2 required	Yes
Load voltage 1L+
● Rated value (DC)
● permissible range, lower limit (DC)
● permissible range, upper limit (DC)
● Reverse polarity protection
Input current
Current consumption (rated value)
Current consumption, typ.	110 mA
from load voltage 1L+ (unswitched voltage)
from load voltage 2L+, max.
Encoder supply
Number of outputs	4
24 V encoder supply
● Short-circuit protection	Yes; Electronic at 1.4 A
● Output current, max.	1 A
Power loss
Power loss, typ.	2.8 W
Address area
Address space per module
● Inputs
Hardware configuration
Submodules
● Number of configurable submodules, max.
Analog inputs
Number of analog inputs	8
● For voltage/current measurement	4
● For voltage measurement
● For resistance/resistance thermometer measurement	4
● For thermocouple measurement
permissible input voltage for voltage input (destruction limit), max.	28.8 V permanent, 35 V for max. 500 ms
Constant measurement current for resistance-type transmitter, typ.
Cycle time (all channels), min.
Technical unit for temperature measurement adjustable
Input ranges (rated values), voltages
● 0 to +10 V	Yes
● 1 V to 5 V	Yes
● -10 V to +10 V	Yes
● -80 mV to +80 mV	Yes
— Input resistance (-80 mV to +80 mV)
Input ranges (rated values), currents
● 0 to 20 mA	Yes
● -20 mA to +20 mA	Yes
● 4 mA to 20 mA	Yes
Input ranges (rated values), thermocouples
● Type B
— Input resistance (Type B)
● Type C
— Input resistance (Type C)
● Type E	Yes
— Input resistance (Type E)
● Type J	Yes
— Input resistance (type J)
● Type K	Yes
— Input resistance (Type K)
● Type L
— Input resistance (Type L)
● Type N	Yes
— 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
— Input resistance (Ni 100)
● Ni 1000	Yes
— Input resistance (Ni 1000)
● Ni 120	Yes
— Input resistance (Ni 120)
● Ni 200	Yes
— Input resistance (Ni 200)
● Ni 500	Yes
— Input resistance (Ni 500)
● Pt 100	Yes
— Input resistance (Pt 100)
● Pt 1000	Yes
— Input resistance (Pt 1000)
● Pt 200	Yes
— Input resistance (Pt 200)
● Pt 500	Yes
— Input resistance (Pt 500)
Input ranges (rated values), resistors
● 0 to 150 ohms	Yes
— Input resistance (0 to 150 ohms)
● 0 to 300 ohms	Yes
— Input resistance (0 to 300 ohms)
● 0 to 600 ohms	Yes
— Input resistance (0 to 600 ohms)
● 0 to 3000 ohms	Yes
— Input resistance (0 to 3000 ohms)
● 0 to 6000 ohms
— Input resistance (0 to 6000 ohms)
Thermocouple (TC)
Temperature compensation
— parameterizable	Yes
— internal temperature compensation	Yes
— external temperature compensation with Pt100
— external temperature compensation with compensations socket	Yes
— dynamic reference temperature value
— for definable comparison point temperature
— fixed reference temperature
Cable length
● shielded, max.	30 m
Analog value generation for the inputs
Analog value display	SIMATIC S7 format
Measurement principle	integrating
Integration and conversion time/resolution per channel
● Resolution with overrange (bit including sign), max.	16 bit
● Integration time, parameterizable	Yes
● Integration time (ms)	2/16.67/20/100 ms
● Basic conversion time, including integration time (ms)
— additional conversion time for wire-break monitoring
● Interference voltage suppression for interference frequency f1 in Hz	500 / 60 / 50 / 10 Hz
● Conversion time (per channel)	4 / 19 / 22 / 102 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; 64x cycle time
Encoder
Number of connectable encoders, max.	8
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	Yes
Errors/accuracies
Linearity error (relative to input range), (+/-)	0.01 %
Temperature error (relative to input range), (+/-)	U: 0.0035%/°C; I:0.006%/°C; RTD: 0.0005%/°C; TC: 0.0035%/°C
Crosstalk between the inputs, min.	85 dB
Crosstalk between the inputs, max.
Repeat accuracy in steady state at 25 °C (relative to input range), (+/-)	0.008 %
Temperature error of internal compensation
Operational error limit in overall temperature range
● Voltage, relative to input range, (+/-)
● Resistance, relative to input range, (+/-)
● Resistance thermometer, relative to input range, (+/-)
● Thermocouple, relative to input range, (+/-)
Basic error limit (operational limit at 25 °C)
● Voltage, relative to input range, (+/-)
● Resistance, relative to input range, (+/-)
● Resistance thermometer, relative to input range, (+/-)
● Thermocouple, relative to input range, (+/-)
Interference voltage suppression for f = n x (f1 +/- 1 %), f1 = interference frequency
● Series mode interference (peak value of interference < rated value of input range), min.	46 dB
● Common mode interference, min.	70 dB
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.
Interfaces
Transmission procedure	100BASE-TX
Number of PROFINET interfaces	1
1. Interface
Interface type
Interface types
● M12 port	Yes
● Number of ports
● integrated switch	Yes
Protocols
● PROFINET IO Device
● Open IE communication
Interface types
M12 port
● Autonegotiation	Yes
● Autocrossing	Yes
● Transmission rate, max.	100 Mbit/s
Protocols
Supports protocol for PROFINET IO	Yes
PROFINET CBA	No
PROFIsafe	No
EtherNet/IP
Modbus TCP
PROFINET IO Device
Services
— IRT
— IRT with the option “high flexibility”	Yes
— Prioritized startup	Yes
— Shared device
— Number of IO Controllers with shared device, max.
Redundancy mode
● PROFINET system redundancy (S2)
— on S7-1500R/H
— on S7-400H
● PROFINET system redundancy (R1)
● H-Sync forwarding
Media redundancy
— MRP	Yes
EtherNet/IP
Services
— CIP Implicit Messaging
— CIP Explicit Messaging
— CIP Safety
— Shared device
— Number of scanners with shared device, max.
Updating times
— Requested Packet Interval (RPI)
Redundancy mode
— DLR (Device Level Ring)
Address area
— Address space per module, max.
— LargeForwardOpen (Class3)
Modbus TCP
Services
— read coils (code=1)
— read discrete inputs (code=2)
— Read Holding Registers (Code=3)
— write single coil (code=5)
— write multiple coils (code=15)
— Write Multiple Registers (Code=16)
— Parameter change by master
— Modbus TCP Security Protocol
Address space per station
— Address space per station, max.
— Access-consistent address space
Updating time
— I/O request interval
Connections
— Number of connections per slave
Open IE communication
● TCP/IP	No
● SNMP	Yes
● DCP	Yes
● LLDP	Yes
● ping	Yes
● ARP	Yes
Interrupts/diagnostics/status information
Diagnostics function	Yes
Alarms
● Diagnostic alarm	Yes
● Maintenance interrupt
● Limit value alarm
Diagnoses
● Diagnostic information readable	Yes
● Monitoring the supply voltage	Yes; green “ON” LED
— parameterizable
● Wire-break
● Short-circuit encoder supply	Yes; per module
● Group error	Yes; Red/yellow “SF/MT” LED
● Overflow/underflow	Yes
Diagnostics indication LED
● RUN LED
● ERROR LED
● MAINT LED
● NS LED
● MS LED
● IO LED
● Channel status display
● for channel diagnostics
● Connection display LINK TX/RX
Potential separation
between the load voltages	Yes
between load voltage and all other switching components	No
between Ethernet and electronics	Yes
Potential separation channels
● between the channels	No
● between the channels and the power supply of the electronics
Permissible potential difference
Between the inputs and MANA (UCM)	10 Vpp AC
Isolation
tested with
● 24 V DC circuits	707 V DC (type test)
● Test voltage for interface, rms value [Vrms]	1 500 V; According to IEEE 802.3
Degree and class of protection
IP degree of protection	IP65/67
Standards, approvals, certificates
Suitable for applications according to AMS 2750	Yes; Declaration of Conformity, see online support entry 109757262
Suitable for applications according to CQI-9	Yes; Based on AMS 2750 E
Ambient conditions
Ambient temperature during operation
● min.
● max.
Altitude during operation relating to sea level
● Ambient air temperature-barometric pressure-altitude
connection method / header
Design of electrical connection	4/5-pin M12 circular connectors
Design of electrical connection for the inputs and outputs
Design of electrical connection for supply voltage
Dimensions
Width	60 mm
Height	175 mm
Depth	49 mm
Weights
Weight, approx.	930 g