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3533E

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A simplex digital input module featuring 32 points of 24 VDC inputs, providing reliable signal monitoring for Tricon systems.
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Technical specifications for 3533E

  • Manufacturer:
    Invensys
  • Part Number:
    3533E
  • Product Family:
    Triconex
  • Module Type:
    Digital Input Module (Simplex)
  • Architecture:
    Single / Simplex
  • Input Points:
    32 points
  • Operating Voltage:
    24 Vdc/dc
  • Number of Channels:
    3 independent channels (A, B, C)
  • Channel Isolation:
    Fully isolated between channels; a fault in one channel does not affect others
  • Processor Type:
    8-bit I/O Communication Processor per channel
  • Weight:
    2.18 kg
  • Estimated shipping dimensions:
    2.2x40.7x39.8cm
  • Tariff Code:
    8537101190
  • Country of origin:
    USA
  • 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.
Description
The 3533E module belongs to the Tricon system’s Digital Input Module series, operating at 24 Vdc/dc and providing 32 input points. Designed with a Simplex architecture, this module is used to receive and process digital signals from field devices.

The Tricon system supports two basic types of digital input modules: TMR (Triple Modular Redundant) and Single. The 3533E falls under the single-channel category. All digital input modules contain circuitry for three completely independent channels (A, B, and C). Each channel is electrically isolated from the others, ensuring that a fault on one channel cannot affect the performance of the others, thereby maintaining high system reliability and safety.
Alternative Names
3533 3531E 3532E 3503E 3504E
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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.
How does the 3533E module process input signals?
Each channel asynchronously measures the signals from the input termination module, determines the input states, and stores them in Input Tables A, B, and C respectively. These tables are regularly accessed by the corresponding main processor through the I/O bus — for example, Main Processor A reads Input Table A
What distinguishes TMR digital input modules from the 3533E Simplex type?
TMR digital input modules have fully triplicated critical signal paths for maximum safety and availability. Each channel independently conditions its signals and isolates the field from the Tricon system. The 64-point high-density TMR module is an exception, as it does not include channel-to-channel isolation.
Do TMR modules have any self-test features?
Yes. DC-type TMR digital input modules can perform self-tests to detect stuck-ON conditions in the circuitry, enhancing diagnostic capability and reliability.
What are the main advantages of the Tricon 3533E module?
The Tricon 3533E offers a highly reliable design, independent channel operation, and intelligent signal processing. These features make it a key component in maintaining the stability and safety of industrial automation and control systems.

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