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        • Lifecycle status

          Discontinued / Obsolete by OEM
          For 6ES7141-1BF12-0XB0, Apter Power offers quotations, manuals, product selection, and model matching.

        6ES7141-1BF12-0XB0

        / 4.9
        1001 reviews ｜ Need a Specific Revision?
        Siemens 6ES7141-1BF12-0XB0 is an ET 200X BM 141 basic module that supplies and acquires eight 24 V DC inputs while linking the station to PROFIBUS DP.
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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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        Technical specifications for 6ES7141-1BF12-0XB0

        • Manufacturer:
          Siemens
        • Part Number:
          6ES7141-1BF12-0XB0
        • Product Family:
          Siemens Simatic DP
        • Product Type:
          BM 141 8-Channel Digital Input Basic Module
        • Stock:
          1
        • Digital Inputs:
          8
        • Input Rating:
          24 V DC
        • Signal 0 Range:
          -3 to +5 V
        • Signal 1 Range:
          13 to 30 V
        • Typical Signal 1 Current:
          7 mA
        • Input Delay:
          1.2 to 4.8 ms
        • Input Connectors:
          4 x 5-pin M12, double assigned
        • Encoder Supplies:
          4
        • Maximum Encoder-Supply Current:
          0.9 A up to 40 °C; 0.7 A up to 55 °C
        • PROFIBUS Role:
          DP slave
        • Maximum PROFIBUS Rate:
          12 Mbit/s
        • Maximum Expansion Modules:
          7
        • Rated 1L+ Supply:
          24 V DC
        • Maximum 1L+ Input Current:
          180 mA
        • Typical Power Loss:
          3.5 W
        • Protection Rating:
          IP66 / IP67
        • Weight:
          1.102 lbs (0.5 kg)
        • Estimated shipping dimensions:
          13.4x11x5.5cm
        • Tariff Code:
          85389091
        • 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 Mapping Power Paths PROFIBUS DP Expansion & Seal

        Features:

        • Eight 24 V DC inputs acquire field states through four double-assigned M12 sockets.
        • The integrated PROFIBUS DP slave transfers station input data to the controller.
        • Protected 1L+ sensor power and a separate 2L+ load path organize field supply.
        Siemens 6ES7141-1BF12-0XB0 combines ET 200X station communication and digital input acquisition.

        Each M12 socket on 6ES7141-1BF12-0XB0 carries two channels plus their sensor-supply reference.

        The backplane interface of 6ES7141-1BF12-0XB0 extends communication and supply coordination to following modules.

        The Siemens 6ES7141-1BF12-0XB0 ET 200X BM 141 Digital Input Basic Module may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
        Siemens 6ES7141-1BF12-0XB0 ET 200X BM 141 Digital Input Basic 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.

        Double-Assigned Digital Inputs

        • Socket group: Four M12 sockets carry eight channels by assigning two inputs to each connector.
        • Signal levels: The module distinguishes -3 to +5 V as off and 13 to 30 V as on.
        • Sensor current: Each active input draws approximately 7 mA at the documented signal level.
        • Channel feedback: Individual indicators expose input states before PROFIBUS transfer.

        Electronics, Sensors and Load Supply

        • Electronics feed: 1L+ powers internal electronics and the encoder-supply outputs.
        • Protection: The 1L+ path includes electronic short-circuit and reverse-polarity protection.
        • Load feed: 2L+ remains a separate 24 V DC load-voltage connection.
        • Fault isolation: Supply indicators separate missing field power from a DP bus fault.

        Station Bus Operation

        • Slave role: The basic module represents the ET 200X station to the PROFIBUS master.
        • Bus rate: Communication supports configured PROFIBUS DP rates up to 12 Mbit/s.
        • Addressing: The station address must match the controller hardware configuration.
        • Status LEDs: ON, BF, and SF indicators distinguish power, bus, and station faults.

        Backplane Growth and Enclosure Integrity

        • Expansion count: Up to seven ET 200X expansion modules follow the basic module.
        • Backplane path: The internal bus distributes station communication to the connected modules.
        • Connector sealing: Unused M12 sockets require protective caps to retain enclosure protection.
        • Protection level: Correctly assembled connections support the documented IP66/IP67 rating.
        Description
        Siemens 6ES7141-1BF12-0XB0 is a SIMATIC ET 200X BM 141 basic module with eight 24 V DC digital inputs and an integrated PROFIBUS DP slave interface. It forms the station head, acquires field states, and transfers them to the DP master.

        Four five-pin M12 sockets on 6ES7141-1BF12-0XB0 each carry two digital input channels together with sensor supply and reference connections. This double assignment keeps eight input paths within four field connectors while the input LEDs expose individual signal states.

        The 1L+ path of 6ES7141-1BF12-0XB0 supplies the electronics and sensors through electronic short-circuit and reverse-polarity protection. A separate 2L+ connection feeds load voltage, so a field-supply fault can be distinguished from loss of PROFIBUS communication.

        Up to seven ET 200X expansion modules connect behind 6ES7141-1BF12-0XB0 through the backplane bus. Unused M12 positions must remain sealed to preserve the documented IP66/IP67 enclosure protection.
        Alternative Names
        6ES71411BF120XB0 6ES7141 1BF12 0XB0 6ES7 141 1BF12 0XB0 Siemens 6ES7141-1BF12-0XB0 6ES7141-1BF12-0XB0 BM 141 6ES7141-1BF12-0XB0 ET 200X Input Module 6E57141-1BF12-0XB0 6ES7141-1BFI2-0XBO
        Technical notes
        Four double-assigned M12 sockets let Siemens 6ES7141-1BF12-0XB0 acquire eight inputs while its basic-module interface anchors the ET 200X station.
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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 can 6ES7141-1BF12-0XB0 show input LEDs while the PLC reads no data?
        Check the 6ES7141-1BF12-0XB0 PROFIBUS address, GSD configuration, bus cable, termination, master status, and BF indicator.
        Why do two channels share one connector on 6ES7141-1BF12-0XB0?
        Each five-pin M12 socket of 6ES7141-1BF12-0XB0 is double assigned, so two input signals share the connector with supply and reference pins.
        What should be checked when sensors lose power on 6ES7141-1BF12-0XB0?
        Inspect the 6ES7141-1BF12-0XB0 1L+ feed, polarity, short circuit, sensor-current total, connector pins, and electronic protection state.
        Why can an ET 200X extension fault appear after replacing 6ES7141-1BF12-0XB0?
        The 6ES7141-1BF12-0XB0 backplane order, configured module list, supported expansion count, supply paths, and connector seating must match the project.
        How is IP67 protection retained on 6ES7141-1BF12-0XB0?
        Tighten every 6ES7141-1BF12-0XB0 M12 and supply connector correctly and seal each unused position with the specified protective cap.
        What must match before installing another 6ES7141-1BF12-0XB0?
        Confirm the 6ES7141-1BF12-0XB0 article number, hardware version, station address, connector pinout, supply arrangement, and ET 200X expansion sequence.

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