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      6ES7235-0KD22-0XA0

      Analog I/O Module

      Product Information

      Product Describe

      SIMATIC S7-200, analog I/O EM 235,

      only for S7-22X CPU, 4 AI, +/-10 V DC;

      1 AO, +/-10 V DC 12 bit converter

      industrial automation system

      • Manufacturer:
        Siemens
      • Product Category:
        PLC System
      • Spare Part Number:
        EM 235
      • Estimated shipping dimensions:
        7.6x7.6x10.2cm
      • Weight:
        0.1 kg
      • Tariff Code:
        8537101190
      • Country of origin:
        Germany
      • Place of shipment:
        Xiamen, Fujian, China
      • from backplane bus 5 V DC, max.:
        30 mA
      • from sensor current supply or external current supply (24 V DC), max.:
        60 mA
      • Power loss, typ.:
        2 W
      • Number of analog inputs:
        4; Difference
      • permissible input voltage for voltage input (destruction limit), max.:
        30 V
      • Resolution with overrange (bit including sign), max.:
        12 bit
      • Settling time for voltage output:
        100 µs
      • Settling time for current output:
        2 ms
      • Stock:
        30
      By purchasing this item, you agree to the Terms & Conditions
      Moore Automated is NOT an authorized distributor of Siemens
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          FAQ

          • What functional purpose does the 6ES7235-0KD22-0XA0 module serve within SIMATIC S7-200 automation systems, and which CPUs is it designed to interface with?
            The 6ES7235-0KD22-0XA0 is an analog I/O expansion module (EM 235) engineered to augment the signal acquisition capability of SIMATIC S7-200 series PLCs, specifically for integration with S7-22X CPU models. It provides mixed analog input and output channels, enabling precise interfacing with industrial sensors and actuators that produce or require continuous analog signals.
          • How many analog input and output channels are supported by the 6ES7235-0KD22-0XA0, and what signal types are accepted?
            The 6ES7235-0KD22-0XA0 features four analog inputs (4 AI) and one analog output (1 AO), all with 12-bit conversion resolution. These channels accept both voltage and current signal types, allowing versatile connection to transducers operating across a broad range of industrial signal standards.
          • What are the power consumption parameters for the 6ES7235-0KD22-0XA0, and how does this influence system power budgeting?
            The 6ES7235-0KD22-0XA0 draws up to 30 mA from the S7-200 backplane 5 V DC bus and up to 60 mA from an external 24 V DC supply when additional sensor power is required. Its typical power dissipation is approximately 2 W, which should be considered when allocating power resources in constrained PLC racks.
          • How does the 6ES7235-0KD22-0XA0’s resolution impact precision and control fidelity in process automation?
            With 12-bit analog-to-digital conversion, the 6ES7235-0KD22-0XA0 delivers fine signal quantization, enabling up to 4096 discrete levels across the selected input range. This high resolution enhances the fidelity of measured process variables and provides smoother analog output control, which is crucial in applications such as PID loop control or real-time feedback systems.
          • What limitations should engineers be aware of when selecting 6ES7235-0KD22-0XA0 for modern automation deployments?
            While the 6ES7235-0KD22-0XA0 remains a functional analog module, it has been designated as obsolete in the Siemens product lifecycle, with official cancellation effective since October 2017. No direct replacement may be offered within the S7-200 ecosystem, which may prompt consideration of more current PLC platforms such as SIMATIC S7-1200 or S7-1500 for long-term support.
          • What environmental and mounting considerations apply to the 6ES7235-0KD22-0XA0 in industrial control panels?
            The 6ES7235-0KD22-0XA0 typically conforms to IP20 protection when mounted on a DIN rail within an S7-200 rack. Operating temperature ranges may vary with installation conditions; users should adhere to Siemens recommended environmental guidelines for ambient temperature, vibration, and humidity to maintain signal reliability and prevent premature module failure.

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