AI880A

The AI880A High Integrity Analog Input Module is designed for single and redundant configuration. The module has 8 current input channels. The input resistance is 250 ohm.

The module distributes the external transmitter supply to each channel. This adds a simple connection to distribute the supply to 2- or 3-wire transmitters. The transmitter power is supervised and current limited. All eight channels are isolated from the ModuleBus in one group. Power to the Module is generated from the 24 V on the ModuleBus.

The AI880A complies with the NAMUR recommendation NE43, and supports configurable over- and under range limits.

Features and benefits

  • 8 channels for 0...20 mA, 4...20 mA, single ended unipolar inputs
  • Single or redundant configuration
  • 1 group of 8 channels isolated from ground
  • 12 bit resolution
  • Loop Supervised DI function
  • Configurable alarm limit for field power outputs
  • Configurable over/under range for current inputs
  • Current limited transmitter supply per channel
  • Advanced on-board diagnostics
  • Certified for SIL3 according to IEC 61508
  • Certified for Category 4 according to EN 954-1
  • Complies with the NAMUR recommendation NE43, and supports configurable over- and under range limits
  • HART pass-through communication (AI880A)

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