ABB 07AC91B GJR5252300R0101 Analog I/O Unit

Technical Specifications

Model: 07AC91B

Part Number: GJR5252300R0101

Brand: ABB

Product Type: Analog I/O unit

Fieldbus: CS31 bus

Signal Type: Analog input & analog output

Supply Voltage: 24 V DC

Mounting: DIN‑rail mounting

Compatible System: Advant Controller 31, Advant OCS

Operating Temperature: ‑20℃ ~ +60℃

Protection Class: IP20

Core Function: Collect field analog signals and output analog control values via CS31 fieldbus

Product Details

The 07AC91B GJR5252300R0101 is a CS31 bus I/O Device under ABB Advant Controller 31 series, acting as a dedicated process signal transceiver between field analog instruments and the main control unit. It is responsible for converting physical signals from the production site into bus‑compliant data for controller processing.

This unit integrates analog input and output channels in one compact housing. It connects pressure transmitters, temperature transmitters, electric regulating valves and other field instruments. Analog input channels collect real‑time process variables; analog output channels deliver adjustment signals to actuators to realize closed‑loop regulation for pressure, temperature and flow. Based on CS31 fieldbus architecture, it realizes distributed signal acquisition, which greatly reduces on‑site cable consumption compared with traditional point‑to‑point wiring.

The front panel is equipped with multi‑group LED indicators for channel status and bus diagnosis. Operators can quickly judge channel overflow, short‑circuit fault and bus communication abnormality status. Built‑in signal conditioning circuit can suppress part of industrial interference, ensuring stable signal sampling accuracy even in workshop environments with motor and frequency‑converter interference.

It adopts standard DIN‑rail installation, easy for cabinet layout and modular expansion. It is widely applied in water treatment, light industry, chemical and small‑scale thermal‑power automation projects based on Advant AC31 platform. It is reliable hardware for on‑site analog point expansion, instrument signal docking and aging module replacement of old Advant control systems.