ABB AI880A High Integrity Analog Input Module | S800 Series

AI880A High Integrity Analog Input Module – Product Overview

The AI880A is a high-integrity 8-channel analog input module. It supports single or redundant configurations. Each channel accepts 0–20 mA or 4–20 mA signals. The module includes a supervised, current-limited transmitter supply per channel. It meets SIL3 (IEC 61508) and Category 4 (EN 954-1) standards. This module is ideal for safety-critical process control systems.

Key Features & Benefits

• 8 unipolar single-ended inputs – 0..20 mA or 4..20 mA, with HART pass-through
• Redundancy ready – supports single or redundant configurations for high availability
• Group isolated – all 8 channels isolated from ground in one group
• 12-bit resolution and fast 10 ms update cycle
• Advanced diagnostics – supervises internal voltage, field power input/output per channel
• NAMUR NE43 compliant with configurable over/under range limits
• Loop supervised DI function and configurable alarm limits
• Current limited transmitter power – protects field devices
• Certified for SIL3 (IEC 61508) and Category 4 (EN 954-1)

Technical Specifications

Environmental & Certification

• Operating Temperature – 0 to +55 °C (+32 to +131 °F) ; approvals at +5 to +55 °C
• Storage Temperature – -40 to +70 °C (-40 to +158 °F)
• Relative Humidity – 5 to 95 % non-condensing
• Protection Class – IP20 (IEC 60529)
• Corrosion Protection – ISA-S71.04 G3
• Pollution Degree – 2 (IEC 60664-1)
• EMC – EN 61000-6-4 & EN 61000-6-2
• Electrical Safety – EN 61010-1, UL 61010-1, EN 61010-2-201
• Hazardous Locations – C1 Div 2 cULus, Zone 2 cULus, ATEX Zone 2
• Marine – ABS, BV, DNV, LR
• RoHS – DIRECTIVE 2011/65/EU
• WEEE – DIRECTIVE 2012/19/EU

Diagnostics & Status Indication

• Front LEDs: F(ault), R(un), W(arning)
• Supervision: internal voltage, field power input, field power output per channel
• Status: module error, module warning, channel error
• Advanced on-board diagnostics with configurable alarm limits

Compatibility & Mounting

• Compatible MTUs: TU834, TU844, TU845, TU854
• Keying code: FD
• Dimensions: 45 mm (W) x 102 mm (D) x 119 mm (H) ; 111 mm depth with connector
• Weight: 0.15 kg (0.33 lbs)

Installation & Maintenance

• Mount on standard S800 rail. Use TU834 MTU for single or redundant setups.
• Connect field devices to 2- or 3-wire transmitters with supplied power.
• Observe max cable length of 600 m for reliable signal.
• LED indicators simplify troubleshooting. No special tools required.
• Regularly check module status via supervision diagnostics.

Typical Applications

• Safety instrumented systems (SIS) up to SIL3
• Process control in oil & gas, chemical, and power plants
• High-integrity analog measurement for critical loops
• Redundant I/O configurations for high availability
• HART pass-through for smart transmitter communication

Frequently Asked Questions

Q: Is the AI880A compatible with HART?
Yes, it supports HART pass-through communication.

Q: Can I use it in a redundant system?
Yes, the AI880A is designed for both single and redundant configurations.

Q: What is the update cycle time?
The module updates every 10 ms.

Q: Does it have field power supervision?
Yes, it supervises field power input and output per channel.

Q: What certifications does it hold?
SIL3 (IEC 61508), Category 4 (EN 954-1), ATEX Zone 2, cULus, marine approvals.

Why Buy From Oiltech Controls?

• 15+ years in industrial automation spare parts
• Global shipment – FedEx, UPS, DHL available
• Tested surplus/refurbished options with full verification
• 12-month warranty on all products
• Technical verification before shipment
• Support for obsolete control systems

Ordering & Shipping

• Packaging: Anti-static, secure industrial packaging.
• Shipping: FedEx, UPS, DHL – worldwide express.
• Warranty: 12 months from date of invoice.
• Contact: info@oiltechcontrols.com or +86 158 8020 0923 (WhatsApp).

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