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Yokogawa CENTUM VP AAB841-S00 8-Channel Analog I/O Module

Yokogawa CENTUM VP AAB841-S00 8-Channel Analog I/O Module

Product Description

The AAB841-S00 (AAB841) is a high-density analog input/output module designed for Yokogawa Electric Corporation CENTUM VP and CS 3000 control systems. This hybrid module combines 8 channels of analog voltage input with 8 channels of analog current...

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Availability: Low stock: 99 left

SKU: AAB841-S00
Vendor: Yokogawa
Category: Analog I/O Module
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Product Description

The AAB841-S00 (AAB841) is a high-density analog input/output module designed for Yokogawa Electric Corporation CENTUM VP and CS 3000 control systems. This hybrid module combines 8 channels of analog voltage input with 8 channels of analog current output in a single slot, making it ideal for compact process control loops where fast signal acquisition is required.

The module uses a non-isolated differential input architecture optimized for 1–5 V DC transmitters and outputs 4–20 mA signals to actuators or valve positioners. Its robust industrial construction ensures long-term accuracy and reliability in standard control room environments. With a 10 ms data refresh rate, the AAB841-S00 delivers high-speed analog processing suitable for monitoring and control tasks.

Detailed Technical Specifications

Parameter Specification
I/O Density 8 Input Channels / 8 Output Channels
Input Signal Range 1–5 V DC (Differential)
Output Signal Range 4–20 mA DC
Data Refresh Rate 10 ms
Input Impedance (Power ON) ≥ 1 MΩ
Conversion Accuracy ±0.1% of full scale
Step Response (Input) 100 ms
Step Response (Output) 40 ms
Maximum Current Draw 310 mA (5 V DC)
Operating Temperature 0°C to 50°C

System Architecture and Installation

  • Standard module for non-corrosive environments.

  • Requires stable common ground between field devices and DCS due to non-isolated design.

  • Typically connected via KS cable terminal boards for simplified wiring and maintenance.

Technical FAQ

How does the AAB841-S00 differ from the HART-enabled S50 version?
The AAB841-S00 is a standard analog module without HART digital overlay. It is suitable for basic 1–5 V / 4–20 mA loops where remote instrument configuration is not required, offering a more cost-effective solution.

Can this module directly power a 2-wire transmitter?
No. The module does not provide loop power. Field transmitters must be powered externally (24 V DC) before feeding the signal into the module.