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.

• 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)