AO810V2 ABB S800 Analog Output | 14-Bit 600m Cable Length

Product Overview

The ABB AO810V2 Analog Output Module delivers 8 channels of 0-20 mA or 4-20 mA signals for precise actuator and valve control. Part of the S800 I/O family, this module provides 14-bit resolution with groupwise isolation from ground. It supports field cable runs up to 600 meters, making it ideal for distributed process automation applications.

Core Functionality

The AO810V2 converts digital setpoints from the controller into analog current signals. Each output is short-circuit proof with current limiting protection. The module supports under/over range capability of ±15%, allowing extended control margins. Output load capacity varies by supply configuration: ≤500 Ω when powered from L1+ only, or 250-850 Ω with L2+ connected. The update cycle time is ≤2 ms, ensuring responsive control loops.

Technical Specifications

Compatibility

Installation Guide

Mount the AO810V2 in any S800 I/O slot. Verify the keying code (AE) matches the MTU before insertion. Connect field wiring to the appropriate termination unit (TU810, TU812, TU814, TU830, or TU833). Ensure the external 24Vdc supply provides at least 245 mA per module. For optimal accuracy, limit field cable length to 600 meters. When using loop-powered devices, configure the supply connection (L1+ or L2+) based on the load requirements.

Engineering Advantages

The AO810V2 delivers 14-bit resolution with ±15% over-range capability, providing precise control across the full signal span. Groupwise isolation protects the control system from ground loops and field-side faults. The short-circuit proof output ensures module survival during wiring errors. Temperature drift of just 30 ppm/°C typical maintains accuracy in varying ambient conditions. The 600-meter cable length capability supports large plant layouts without signal degradation.

Technical FAQs

Q1: What is the difference between AO810 and AO810V2?
A1: The AO810V2 is the enhanced version with improved accuracy, faster update cycle (≤2 ms vs older models), and extended load range support up to 850Ω.

Q2: Can I connect a loop-powered transmitter directly to the AO810V2?
A2: Yes. The module supports 4-20 mA loop-powered devices. Select the appropriate supply configuration (L1+ or L2+) based on your load requirements.

Q3: What does the keying code AE signify?
A3: The AE keying code ensures correct module-to-MTU pairing. It prevents inserting incompatible modules into the termination unit, protecting both module and field wiring.