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      Siemens 6ES7138-6BA01-0BA0
      · Product image is representative; revision or series may vary. Contact us to request a specific version.
      Ships by Sunday, October 18

      6ES7138-6BA01-0BA0

      Encoder Position Input Module

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          PRODUCT DESCRIPTION

          Acquire incremental counts and SSI absolute position in ET 200SP

          Siemens 6ES7138-6BA01-0BA0 is the single-channel TM PosInput 1 technology module for SIMATIC ET 200SP. It processes RS422 incremental or pulse signals, compatible TTL signals and SSI absolute-encoder data. Two digital inputs and two outputs support configurable capture, synchronization and comparison functions.

          The firmware V2.0 module operates on an A0 BaseUnit and provides monitored 5 V and 24 V encoder supplies. Its operating mode determines the control and feedback interface. Selection should therefore match the encoder standard, signal frequency, required technology object and application wiring.
          BEFORE YOU BUY

          Confirm the complete installed configuration

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          ACTUAL APPLICATIONS

          Industrial Production and Service Sectors

          These industry examples describe Siemens' broader market coverage, not verified installations of this exact product. Product suitability depends on the documented configuration and engineering requirements.
          • 01 · PLASTICS PROCESSING

            Extrusion and Injection Molding

            Plastic extrusion for material production within the plastics industry.Injection molding for plastic product manufacturing across industrial markets.
          • 02 · PACKAGING

            Pharmaceutical and Non-food Packaging

            Pharmaceutical product packaging within the medicines and healthcare sector.Non-food product packaging across consumer goods and industrial markets.
          • 03 · TEXTILE MANUFACTURING

            Fabric Production and Textile Finishing

            Fabric production spanning the wider commercial textile manufacturing sector.Textile finishing for materials within the commercial fabric industry.

          Technical specifications for 6ES7138-6BA01-0BA0

          • Product Model
            6ES7138-6BA01-0BA0
          • Product Parameters
            Encoder Position Input Module
          • In stock
            1 unit
          • Manufacturer
            Siemens
          • Encoder channel
            1; RS422/TTL incremental or pulse encoder, or SSI absolute encoder
          • Count range
            32 bits
          • Incremental input frequency
            Maximum 1 MHz; maximum 4 MHz counting with quadruple evaluation
          • SSI telegram length
            Configurable 10-40 bits; position value up to 32 bits
          • SSI clock frequency
            125/250/500 kHz; 1/1.5/2 MHz
          • Load supply
            24 V DC rated; permissible 19.2-28.8 V DC; reverse-polarity protection
          • No-load input current
            Maximum 75 mA
          • Encoder supplies
            5 V and 24 V; maximum 300 mA total encoder current; 5 V supply derating applies
          • Digital inputs
            2 parameterizable 24 V inputs; IEC 61131 type 3
          • Digital outputs
            2 sourcing transistor outputs; 0.5 A rated each, 1 A total maximum before derating
          • Address allocation
            Normal: 16 input/12 output bytes; Motion Control: 16/4; Fast Mode: 4/0
          • BaseUnit compatibility
            Type A0; ordered separately
          • Engineering compatibility
            TIA Portal V16 or later; V2.0 function table identifies HSP0184 for V16
          • Typical power loss
            1.5 W
          • Safety suitability
            Not suitable for safety functions
          View all additional
          View as PDF Ask for Quote

          Alternative Names

          6ES7138-6BA01-0BA0 Siemens TM PosInput 1 Technology Module SIMATIC ET 200SP TM PosInput 1 Technology Module
          SYSTEM & REPLACEMENT CHECK

          Information needed before ordering

          Three direct checks to secure your system integration and minimize ordering risks.

          Information

          System integration Replacement check Manuals & support
          ENCODER AND POSITION ACQUISITION

          Match encoder signaling, operating mode and controller interface

          Begin with the encoder's electrical signal type and required acquisition function. SSI uses separate data and clock pairs, while incremental and pulse encoders use the documented A, B and optional N signals. The same module supports several configurations, but they do not share an interchangeable terminal assignment. Use the manufacturer's diagram for the selected signal standard.
          Select the operating mode before assigning controller addresses. Normal counting and measurement, Motion Control position input and Fast Mode have different control and feedback requirements. Firmware V2.0 adds function-specific integration options, so the engineering version and hardware support package must match the planned behavior. A supported physical encoder alone does not establish a complete working project configuration.
          Budget the encoder supply and output loads separately. The module provides monitored 5 V and 24 V supplies, while its two sourcing outputs can switch comparison results or serve as freely controlled outputs. Apply the relevant temperature and mounting-position derating, preserve the required cable shielding, and confirm cable-length limits at the chosen encoder frequency.

          Features:

          • Encoder-specific terminal mapping
          • Mode-dependent process image
          • Separate encoder and output load checks
          The Siemens 6ES7138-6BA01-0BA0 requires the documented hardware configuration, installation conditions and interface arrangement to be verified before system integration and commissioning.
          INTERCHANGEABILITY

          Verify the complete replacement identity before commissioning

          For a like-for-like maintenance replacement, record the complete order code, firmware version, BaseUnit type and operating mode from the existing station. Preserve the encoder specification and project settings rather than inferring them from wire colors or the module's product name. Siemens identifies this model as a V2.0 module, and its supported features depend on the selected configuration.
          The documented 6BA00-to-6BA01 replacement relationship is useful when evaluating an older installation, but it should be applied with its stated scope. Siemens identifies V2.0 hardware as the compatible replacement and separately lists engineering dependencies for individual functions. Confirm the project's hardware entry and any required support package before planning changes to the PLC interface or program.
          After authorized replacement and commissioning, review supply status, encoder diagnostics and the observed count or position response against the application. The manufacturer documents wire-break, short-circuit, A/B transition and SSI telegram diagnostics. Treat unexpected results as a wiring or configuration issue to investigate; this standard technology module is not a substitute for a safety-rated position-monitoring function.

          Features:

          • Complete code and firmware captured
          • Documented predecessor relationship
          • Encoder diagnostics checked
          The Siemens 6ES7138-6BA01-0BA0 requires replacement verification based on its complete order number, installed hardware, signal configuration and project documentation.
          DOCUMENTATION STATUS

          Browse the Manuals, Datasheets, Official Documents, Links

          Important Notice: Official documents are provided through manufacturer links. Accessories, manuals, cables, calibration data, software, certificates, and other items are not included with this equipment unless listed in the stock item description.

          Features:

          • Exact-model manufacturer data and relevant original manual pages
          • Original terminal diagrams, configuration details and manufacturer safety context
          • Accessories and supplied documentation follow the written quotation
          Documentation for the Siemens 6ES7138-6BA01-0BA0 includes an independent technical summary and selected original manufacturer pages; check the applicable document edition against the delivered product and approved installation documentation.

          Also searched as

          6ES7132-6BF01-0AA0 6ES7134-6TD00-0CA1 6ES7135-6HB00-0DA1 6ES7193-6BP00-0DA1 6ES7135-6HD00-0BA1

          Important notice

          Manuals, software, firmware, cables, calibration data and accessories are included only when listed in the quotation. AMIKON is an independent supplier and is not affiliated with or authorised by the manufacturer.
          This content has been produced using multiple sources. Takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
          BUYER INFORMATION

          Commercial terms without hidden steps

          Your written quote confirms the product identity, price, availability, lead time, warranty and shipping terms before payment.
          • 01

            Shipping & delivery

            Dispatch
            Eligible stock: same / next day
            Carriers
            DHL, FedEx or UPS
            Ship from
            Xiamen, China
            Packed size
            Confirm final packed dimensions
            Shipping weight
            Confirm final packed weight
          • 02

            Payment & customs

            Payment
            Bank transfer (T/T)
            Currencies
            USD · EUR · GBP · RMB
            Credit cards
            Not accepted
            HS reference
            8538900000
            Origin
            Confirm supplied-unit origin
          • 03

            Warranty & returns

            Warranty
            12 months from AMIKON
            Inspection
            Label, condition and packing checks
            Returns
            Prior RMA authorisation required
            Compatibility
            Confirm before order
            OEM warranty
            Does not apply
          Your written quote confirms the product identity, price, availability, lead time, warranty and shipping terms before payment.

          • Part checked

            Full suffix recorded

          • Condition checked

            Label and appearance

          • Packing checked

            Antistatic protection

          • Tracking supplied

            Established couriers

          • Sandy Lin

            Dedicated account manager · 15+ years
          FREQUENTLY ASKED QUESTIONS

          Questions buyers ask about 6ES7138-6BA01-0BA0

          Direct answers about identity, compatibility, stock, warranty, payment and shipping.

          • Can this module read an SSI absolute encoder?

            Yes. It accepts RS422 SSI data and clock signals with configurable 10-40-bit telegrams. Binary and Gray coding are supported. The position value transmitted to the controller can be up to 32 bits; SSI operation does not use gate control.

          • Is a 24 V incremental encoder electrically interchangeable with TTL?

            Do not select wiring from the encoder supply alone. The supported incremental signal interfaces are RS422 and 5 V TTL, with TTL restricted to push-pull encoders. Verify the encoder output specification and use the corresponding manufacturer terminal diagram.

          • What changes in Fast Mode?

            Fast Mode acquires a counter or position value with reduced functionality. It uses a reduced four-byte feedback interface and no control interface, unlike normal operation with 16 input and 12 output bytes. Confirm that the reduced interface supports the application.

          • Does the module include its BaseUnit?

            No. Siemens specifies a separately ordered A0 BaseUnit. The exact BaseUnit choice also determines how the potential group receives its supply. Check the existing terminal arrangement and shield accessories as part of the spare-part request.

          • Can 6BA01 replace 6BA00?

            Siemens expressly describes 6ES7138-6BA01-0BA0 with firmware V2.0 as a compatible replacement for 6ES7138-6BA00-0BA0. New V2.0 features still depend on the applicable engineering configuration. This statement does not establish compatibility with unrelated ET 200S or ET 200SP modules.

          • Can both outputs continuously supply their full rated current in every orientation?

            No blanket full-current claim is appropriate. Siemens supplies ambient-temperature and orientation derating curves for the digital-output total current and for the 5 V encoder supply. Inductive-load conditions have additional switching-frequency and inductance qualifications.
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