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        • Lifecycle status

          Discontinued / Obsolete by OEM
          Quotations, manuals, product selection, and model matching for 6ES7144-1FB31-0XB0 are available from Apter Power.

        6ES7144-1FB31-0XB0

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        1001 reviews ｜ Need a Specific Revision?
        Siemens 6ES7144-1FB31-0XB0 is an ET 200X EM 144 analog input expansion module that converts two +/-10 V signals into controller values with channel diagnostics.
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        Ships by Wednesday, October 28
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        Warranty Policy
        We provide 1 year warranty for all remaining parts.
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        Return Notice
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
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        Apter Power offers a wide range of components, products and services related to industrial automation. We also supply new products from a variety of quality manufacturers.
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        Technical specifications for 6ES7144-1FB31-0XB0

        • Manufacturer:
          Siemens
        • Part Number:
          6ES7144-1FB31-0XB0
        • Product Family:
          Siemens Simatic DP
        • Product Type:
          2-Channel Analog Voltage Input Expansion Module
        • Stock:
          1
        • Analog Inputs:
          2 voltage channels
        • Input Range:
          -10 to +10 V
        • Input Resistance:
          100 kohms
        • Maximum Input Voltage:
          30 V destruction limit
        • Resolution:
          12 bit plus sign; 17.5 percent overrange
        • Integration Time:
          16.7 or 20 ms
        • Interference Suppression:
          50 or 60 Hz
        • Voltage Error Limit:
          +/-1.2 percent over temperature range
        • Encoder Supply Outputs:
          2
        • Encoder Supply Protection:
          Electronic short-circuit protection
        • Maximum Output at 40 C:
          0.9 A
        • Maximum Output at 55 C:
          0.7 A
        • Maximum Supply Current:
          40 mA
        • Typical Power Loss:
          0.9 W
        • Diagnostic Functions:
          Parameterizable by channel
        • Alarms:
          Diagnostic, limit value and hardware interrupt
        • Diagnostic LED:
          Red SF group error
        • Potential Separation:
          No isolation between analog inputs
        • Connection:
          4/5-pin M12 circular connectors
        • Maximum Shielded Cable:
          30 m
        • Protection:
          IP66/67
        • Weight:
          0.55 lbs (0.25 kg)
        • Estimated shipping dimensions:
          8.7x11x5.5cm
        • Tariff Code:
          85389011
        • Country of origin:
          Germany
        • Place of shipment:
          Xiamen,Fujian,China
        By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

        More Information

        Overview Manuals Input Path Channel Timing Diagnostics M12 Wiring

        Features:

        • Two ±10 V inputs produce 12-bit-plus-sign values for an ET 200X station.
        • Parameterizable integration suppresses either 50 Hz or 60 Hz interference.
        • Channel diagnostics report range faults and configured limit events through the station.
        Voltage signals enter Siemens 6ES7144-1FB31-0XB0 through its M12 field connections and are converted within the distributed I/O module.

        Both channels of 6ES7144-1FB31-0XB0 use the selected integration setting while retaining individual upper and lower limit monitoring.

        Protected encoder outputs on 6ES7144-1FB31-0XB0 supply attached sensors separately from the measured voltage conductors.

        The Siemens 6ES7144-1FB31-0XB0 ET 200X EM 144 Analog Input Expansion Module may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
        Siemens 6ES7144-1FB31-0XB0 ET 200X EM 144 Analog Input Expansion Module Manuals,Datasheets,Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.

        Voltage Acquisition and Conversion

        • Signal range: Each channel accepts a bipolar -10 V to +10 V measurement signal.
        • Input impedance: The 100 kohm input resistance defines the load presented to the voltage source.
        • Conversion: Integrated measurement produces a 12-bit value plus sign and a documented overrange.
        • Protection limit: The voltage at an input must remain below the 30 V destruction limit.

        Interference Rejection and Response

        • 16.7 ms choice: This integration time aligns conversion with suppression of 60 Hz interference.
        • 20 ms choice: This integration time aligns conversion with suppression of 50 Hz interference.
        • Shared setting: Both analog inputs follow the parameterized conversion timing of the module.
        • Cable boundary: Shielded measurement wiring is limited to a maximum length of 30 m.

        Events and Front Indication

        • Range faults: Overflow and underflow are diagnosed for the affected channel.
        • Limit events: Upper and lower limits can generate channel-specific alarms.
        • Hardware interrupt: The module can raise a hardware interrupt for configured events.
        • SF indicator: The red SF LED summarizes a detected module or channel diagnostic condition.

        Sensor Supply and Potential Group

        • Field connectors: Four- and five-pin M12 circular connectors carry input and output conductors.
        • Encoder feeds: Two electronically protected outputs provide the documented sensor supplies.
        • Shared potential: The analog inputs are not galvanically isolated from one another.
        • Temperature derating: Available encoder-supply current decreases from 0.9 A at 40 C to 0.7 A at 55 C.
        Description
        Siemens 6ES7144-1FB31-0XB0 is an EM 144 analog voltage input expansion module for SIMATIC ET 200X distributed I/O. Its two channels receive ±10 V field signals, integrate each measurement, and deliver 12-bit-plus-sign values to the ET 200X station.

        Four- and five-pin M12 connectors on 6ES7144-1FB31-0XB0 carry the voltage inputs and the two protected encoder-supply outputs. The analog channels share a non-isolated potential group, so their commons and sensor wiring must follow the ET 200X connection arrangement rather than being treated as independent isolated loops.

        Conversion in 6ES7144-1FB31-0XB0 can integrate over 16.7 or 20 ms to suppress 60 or 50 Hz interference. Each channel then compares the measured value with configured upper and lower limits and can report overflow, underflow, a limit event, or a hardware interrupt.

        The IP66/67 field construction of 6ES7144-1FB31-0XB0 places signal acquisition and red SF group indication at the distributed station. Shielded analog cable is limited to 30 m, and input voltages must remain below the documented destruction limit.
        Alternative Names
        6ES71441FB310XB0 6ES7144 1FB31 0XB0 6ES7 144 1FB31 0XB0 Siemens 6ES7144-1FB31-0XB0 6ES7144-1FB31-0XB0 EM 144 ET 200X EM 144 AI 2xU 6ES7144-1FB31-OXBO Siemens analog input 6ES7144-1FB31-0XB0
        Technical notes
        Two shared-potential voltage channels in Siemens 6ES7144-1FB31-0XB0 combine parameterized integration, protected encoder feeds, and channel-specific limit diagnostics.
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        FAQS

        The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
        VIEW ALL FAQS
        Why does a 4-20 mA transmitter produce unusable values on 6ES7144-1FB31-0XB0?
        Siemens 6ES7144-1FB31-0XB0 accepts two -10 V to +10 V inputs, not current loops, so a 4-20 mA transmitter requires the correct signal interface instead of direct connection.
        Are the two inputs of 6ES7144-1FB31-0XB0 isolated from each other?
        No. The analog inputs of 6ES7144-1FB31-0XB0 share the documented potential group and are not galvanically separated.
        Which integration setting should be selected on 6ES7144-1FB31-0XB0?
        Choose 20 ms for 50 Hz rejection or 16.7 ms for 60 Hz rejection when parameterizing 6ES7144-1FB31-0XB0.
        Why can an SF indication appear on 6ES7144-1FB31-0XB0?
        The red SF LED of 6ES7144-1FB31-0XB0 can summarize configured diagnostics such as overflow, underflow, or a channel limit event.
        What should be checked when readings from 6ES7144-1FB31-0XB0 are noisy or unstable?
        For 6ES7144-1FB31-0XB0, verify shield continuity, keep the analog cable within 30 m, and select 20 ms for 50 Hz or 16.7 ms for 60 Hz rejection.
        Why can the encoder supply of 6ES7144-1FB31-0XB0 drop out at elevated temperature or high load?
        The protected encoder output of 6ES7144-1FB31-0XB0 is limited to 0.9 A at 40 C and 0.7 A at 55 C, so the connected load must follow the temperature derating.

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