Mitsubishi R60AD8-G Isolated Analog Input Module

Overview

The Mitsubishi R60AD8-G is a channel‑isolated analog input module of the MELSEC iQ‑R PLC series. This R60AD8-G provides 8 input channels with transformer isolation between channels, supporting both voltage and current analog signals including -10 VDC to +10 VDC and 0–20 mA / 4–20 mA. It delivers 16‑bit digital conversion, with a conversion speed of 10 ms per channel and reference accuracy within ±0.1% at 25±5℃. The module adopts a 40‑pin connector and mounts on the iQ‑R backplane. It complies with IEC 61508, UL, CE, DNV, ABS and other marine and industrial standards, suitable for DCS, process skids, pressure and temperature transmitter signal acquisition.

Features

The Mitsubishi R60AD8-G is an 8‑channel isolated analog input unit for the iQ‑R platform.R60AD8-G features transformer‑based channel‑to‑channel isolation, effectively suppressing cross‑channel interference and ground loop noise. Flexible signal configuration: selectable voltage or current input per channel for transmitters and sensors. High‑precision 16‑bit A/D conversion, stable measurement performance for continuous process signals. Built‑in diagnostic functions for wire break detection and abnormal signal alarm. Direct plug‑in installation on the iQ‑R rack backplane, easy for commissioning and replacement. Marine and functional safety approvals for offshore, power and chemical automation systems. Compliant with UL, cUL, CE, IEC 61508, DNV, ABS, LR and NK standards.

Specs

Device Type: Analog Input Module Model: Mitsubishi R60AD8-G Brand: Mitsubishi Electric Series: MELSEC iQ‑R Channels: 8 isolated analog input channels Isolation: Transformer isolation between channels Input ranges: -10 ~ +10 VDC, 0–20 mA, 4–20 mA Resolution: 16 bit Conversion speed: 10 ms / channel Reference accuracy: ±0.1% (25±5℃) Connector: 40‑pin Mounting: iQ‑R backplane rack Certifications: IEC 61508, UL, CE, DNV, ABS, LR, NK Status: Active production spare part

Principle

The Mitsubishi R60AD8-G receives analog signals from field transmitters and sensors. Each channel converts the analog value into a 16‑bit digital value via isolated A/D circuitry. The digital data is transferred to the iQ‑R CPU over the backplane bus for control logic, PID calculation, recording and alarming. The transformer isolation breaks ground loops and improves reliability in noisy industrial cabinets.

Applications

The Mitsubishi R60AD8-G is used for analog signal collection from pressure transmitters, temperature transmitters, flow transmitters and other field instruments on process skids, water treatment systems, marine control and chemical DCS/PLC systems. The R60AD8-G is stocked as spare replacement for iQ‑R analog control loops.