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      505-6108A

      8-Channel Analog Input Module
      In Stock
      Ships by Saturday, November 7
      Fast Shipping Available
      Product image is representative; revision or series may vary. Contact us to request a specific version.

      Product Describe：

      Siemens 505-6108A is a single-wide SIMATIC 505 analog input module with eight single-ended channels and selectable voltage or current operation.

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      Technical specifications for 505-6108A

      • Manufacturer:
        Siemens
      • Product Category:
        PLC Systems
      • Spare Part Number:
        505-6108A
      • Estimated shipping dimensions:
        2x20.1x26.6cm
      • Weight:
        0.5 kg
      • Tariff Code:
        8537101190
      • Counliy of origin:
        Germany
      • Input channels:
        8 single-ended
      • Selectable ranges:
        ±5 V and 0 to 20 mA, or ±10 V
      • Resolution:
        12 bits plus sign
      • Least significant bit:
        1.25 mV or 5 microampere
      • Maximum update time:
        250 ms for all channels
      • Voltage accuracy:
        ±0.82% full scale over operating range; ±0.5% at 25 °C
      • Current accuracy:
        ±1.25% full scale over operating range; ±0.7% at 25 °C
      • Repeatability:
        ±0.1%
      • User power:
        Not required
      • Module format:
        Single-wide
      View as PDF Ask for Quote

      Information

      Overview Manuals Common Applications Product Precautions
      Siemens 505-6108A digitizes eight single-ended analog inputs in a compact SIMATIC 505 rack position.
      • Provides eight single-ended analog input channels.
      • Selects either ±5 V/0 to 20 mA or ±10 V operation.
      • Provides 12-bit-plus-sign conversion.
      • Updates all eight channels within 250 ms.

      The 8-channel analog input module belongs to the SIMATIC 505 modular control platform. Selection must preserve the documented signal role, terminal arrangement and rack interface.

      Important Notice: Verify the complete Siemens 505-6108A marking, terminal assignment, rack position and configured signal behavior before replacement.

      Siemens 505-6108A Manuals & Downloads
      Siemens 505-6108A Technical Reference (PDF)Siemens 505-6108A Installation & Commissioning Guide (PDF)

      The Technical Reference covers the product function, system role and technical selection. The installation guide covers identification, connection checks, commissioning and the acceptance record.

      Transmitter acquisition
      Read 0 to 20 mA process transmitters through configured channels.
      Bipolar voltage measurement
      Acquire ±5 V or ±10 V signals from compatible instrumentation.
      Legacy-module migration
      Replace the older double-wide 505-6108 while retaining field wiring.
      Condition monitoring
      Bring eight analog machine or process variables into the SIMATIC 505 controller.
      Before installing Siemens 505-6108A, confirm the documented system, interfaces and controlled configuration.
      1
      Confirm the 505-6108A range configuration before connecting a field signal.
      2
      Record every channel, return, shield and configured scaling value.
      3
      Isolate current loops before opening the circuit.
      4
      Use shielded twisted-pair wiring within the documented conductor range.
      5
      Keep analog conductors away from switching and motor-power wiring.
      6
      Do not apply a voltage signal to a channel configured for a current loop.
      7
      Compare every digitized value with a calibrated reference after startup.
      8
      Verify scaling, alarms and control behavior across the required operating range.

      Technical notes

      Verify the complete Siemens 505-6108A marking, terminal assignment, rack position and configured signal behavior before replacement.

      FAQ View All FAQ

      • How many channels does Siemens 505-6108A provide?
        It provides eight single-ended analog input channels.
      • Which input ranges can Siemens 505-6108A select?
        It can be configured for ±5 V with 0 to 20 mA operation, or for ±10 V operation.
      • What conversion resolution is provided by Siemens 505-6108A?
        The module uses 12 bits plus sign.
      • How quickly does Siemens 505-6108A update all channels?
        The documented maximum update time is 250 ms for all eight channels.
      • Does Siemens 505-6108A require a separate user-power supply?
        No separate user power is required.
      • Can Siemens 505-6108A replace the older Siemens 505-6108?
        It is identified as a single-wide replacement that can retain the earlier field wiring; configuration and functional acceptance must still be verified.
      • Which cable construction suits Siemens 505-6108A analog inputs?
        Use shielded twisted-pair conductors within the documented terminal range.
      • How is Siemens 505-6108A commissioned?
        Verify each channel with a calibrated reference, then confirm scaling, alarms and the intended control response.
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