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          Apter Power supplies 6ES7341-1BH02-0AE0 quotations, product manuals, and product-selection guidance.

        6ES7341-1BH02-0AE0

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        1001 reviews ｜ Need a Specific Revision?
        Siemens 6ES7341-1BH02-0AE0 is an S7-300 CP 341 serial processor that exchanges ASCII, 3964(R), RK512, or printer data through an isolated 20 mA TTY interface.
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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 6ES7341-1BH02-0AE0

        • Manufacturer:
          Siemens
        • Part Number:
          6ES7341-1BH02-0AE0
        • Product Family:
          Siemens Simatic S7-300
        • Product Type:
          CP 341 20 mA TTY Serial Communications Processor
        • Stock:
          1
        • Rated Supply Voltage:
          24 V DC
        • Supply Current from L+:
          100 mA maximum
        • Backplane Current at 5 V DC:
          70 mA maximum
        • Power Loss:
          1.6 W typical; 2.4 W maximum
        • Serial Interfaces:
          1, electrically isolated
        • Interface Physics:
          20 mA current loop (TTY)
        • Transfer Rate:
          0.3 to 19.2 kbit/s
        • Maximum Point-to-Point Cable:
          1,000 m
        • Connector:
          9-pin Sub-D socket
        • Integrated Protocols:
          ASCII, 3964(R), and RK512
        • Supply Connection:
          3 screw terminals: L+, M, and GND
        • Maximum Telegram Length:
          4,096 bytes
        • Operating Temperature:
          0 to +60 °C
        • Storage and Transport Temperature:
          -40 to +70 °C
        • Weight:
          0.661 lbs (0.3 kg)
        • Estimated shipping dimensions:
          12.8x15.3x5.2cm
        • Tariff Code:
          85176200
        • 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 TTY Interface Serial Protocols Data Frames Rack Integration

        Features:

        • One electrically isolated 20 mA TTY interface connects legacy serial equipment to an S7-300 station.
        • ASCII, 3964(R), RK512, and printer drivers cover several point-to-point communication tasks.
        • Up to 19.2 kbit/s, 4,096-byte telegrams, and long TTY cable runs define the serial operating envelope.
        The current-loop interface must be selected deliberately because its electrical behavior differs from RS232 and RS422/485 CP 341 variants.

        Protocol parameters move lower-level framing and handshake work into the communication processor while the CPU exchanges user data through blocks.

        Isolation and long-distance capability help legacy field links, but correct loop-current sourcing remains essential for a stable connection.

        The Siemens 6ES7341-1BH02-0AE0 CP 341 20 mA TTY Serial Communications Processor is supported with product documentation and selection assistance from Apter Power.
        Siemens 6ES7341-1BH02-0AE0 CP 341 TTY Processor 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.

        20 mA Current-Loop Connection

        • Electrical format: The isolated serial port uses a 20 mA TTY current loop rather than voltage-level RS232 signaling.
        • Connector: Field communication terminates at the 9-pin Sub-D socket.
        • Loop roles: Active and passive current-loop responsibilities must agree with the connected serial device.
        • Distance: The documented point-to-point cable limit reaches 1,000 m under suitable TTY wiring conditions.

        Configurable Message Handling

        • ASCII: Transparent character transfer supports application-defined frames and control characters.
        • 3964(R): The integrated procedure adds controlled telegram exchange and the documented error checks.
        • RK512: The processor supports the configured RK512 data-exchange procedure.
        • Printer: A serial-printer driver sends formatted controller data to a compatible printer interface.

        Transfer and Telegram Limits

        • Rate range: The serial channel is parameterized from 0.3 to 19.2 kbit/s.
        • Frame format: Data bits, parity, and stop bits must match the remote equipment.
        • Telegram size: The supported ASCII, 3964(R), and RK512 telegram length reaches 4,096 bytes.
        • Buffer planning: Application logic must account for message length and handshake timing before issuing another transfer.

        Power and Program Interface

        • External power: The module receives a separate 24 V DC supply through its front terminals.
        • Backplane: The S7-300 bus transfers control, status, and user data between the CPU and CP 341.
        • Configuration: The CP 341 parameter package selects interface and protocol properties.
        • User blocks: The controller program calls the documented blocks for transmit, receive, and protocol handling.
        Description
        Siemens 6ES7341-1BH02-0AE0 is a CP 341 point-to-point communications processor for the SIMATIC S7-300. Its single isolated 20 mA TTY current-loop interface is intended for serial equipment that uses this electrical format rather than RS232 or RS422/485.

        Protocol handling inside 6ES7341-1BH02-0AE0 covers ASCII, 3964(R), RK512, and serial-printer communication. Telegrams can be as large as 4,096 bytes, while the configured character frame and transfer rate must match the remote device exactly.

        The isolated port of 6ES7341-1BH02-0AE0 uses a 9-pin Sub-D socket and supports 0.3 to 19.2 kbit/s. A point-to-point cable may reach 1,000 m under the documented TTY conditions, but loop current, active/passive roles, and grounding still require verification at both ends.

        Installation of 6ES7341-1BH02-0AE0 also requires 24 V DC at L+ in addition to the S7-300 backplane connection. The supplied configuration package defines port and protocol parameters; application blocks then send, receive, or coordinate the selected serial service.
        Alternative Names
        6ES73411BH020AE0 6ES7341 1BH02 0AE0 6ES 7341 1BH02 0AE0 Siemens 6ES7341-1BH02-0AE0 CP 341 20mA TTY 6ES7341-1BH02-0AE0 CP341 6ES7341-1BHO2-OAEO 6ES734I-IBH02-0AE0
        Technical notes
        Through one isolated 20 mA TTY port, Siemens 6ES7341-1BH02-0AE0 supports 0.3–19.2 kbit/s serial transfer, 1,000 m cabling, and ASCII, 3964(R), or RK512 protocols.
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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
        How do I confirm that a legacy instrument can connect directly to 6ES7341-1BH02-0AE0?
        Verify that the instrument uses a 20 mA TTY current loop, then match its active/passive role and 9-pin wiring to 6ES7341-1BH02-0AE0.
        Why can 6ES7341-1BH02-0AE0 receive characters but reject complete telegrams?
        On 6ES7341-1BH02-0AE0, mismatched baud rate, parity, stop bits, protocol framing, or receive timing can preserve characters while invalidating telegrams.
        Which protocol should be selected for a serial printer connected to Siemens 6ES7341-1BH02-0AE0?
        Use the printer driver provided for Siemens 6ES7341-1BH02-0AE0 rather than configuring the link as RK512 or 3964(R).
        Does the 1,000 m limit of 6ES7341-1BH02-0AE0 apply to every serial installation automatically?
        No. The 6ES7341-1BH02-0AE0 limit assumes suitable TTY cable, loop current, grounding, transfer rate, and interference conditions.
        What powers Siemens 6ES7341-1BH02-0AE0 if it is already seated in the S7-300 rack?
        Siemens 6ES7341-1BH02-0AE0 still requires the documented 24 V DC L+ supply in addition to backplane power.
        How should a 4,096-byte message be handled in the controller program for 6ES7341-1BH02-0AE0?
        For 6ES7341-1BH02-0AE0, size the data area correctly and wait for the communication block status before starting the next transfer.

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