ABB 07AC91D GJR5252300R0101 High‑Resolution Analog I/O Module

Technical Specifications

Model: 07AC91D

Part Number: GJR5252300R0101

Brand: ABB

Product Type: High‑resolution analog I/O module

Resolution: 12‑bit

Analog Input: 8‑channel, ±10V / 0‑20mA / 4‑20mA

Analog Output: 4‑channel, ±10V / 0‑20mA / 4‑20mA

Communication Bus: CS31 (RS‑485)

Bus Isolation: Galvanic isolation between bus and field side

Supply Voltage: 24 V DC

Mounting: DIN‑rail mounting

Compatible System: Advant Controller 31 (AC31)

Operating Temperature: ‑20℃ ~ +60℃

Protection Class: IP20

Core Function: Decentralized collection and output of analog process variables

Product Details

The 07AC91D GJR5252300R0101 is a high‑precision analog signal conditioner for ABB Advant Controller 31 platform. As one decentralized I/O component, it performs distributed analog signal acquisition and output tasks on CS31 fieldbus network, releasing main controller computing burden by completing signal conditioning on module side.

It supports multiple standard industrial analog signal formats, covering voltage and current signals commonly used by transmitters and regulating actuators. 8‑channel analog input receives data from pressure, flow and temperature transmitters; 4‑channel analog output sends adjustment signals to electric valves and actuators. 12‑bit conversion resolution guarantees precise sampling for closed‑loop regulation loops, which is essential for flow, pressure and temperature fine‑tuning control. Galvanic isolation design separates CS31 bus circuit from field signal circuit, effectively suppressing ground loop interference in mixed‑wiring cabinets.

Multiple LED indicators on front panel display channel status, bus communication status and module fault information. Maintenance staff can quickly judge signal overflow, loop breakage and bus offline faults during on‑site inspection. Removable screw terminal blocks facilitate wiring and module replacement without re‑arranging field cables, greatly improving maintenance efficiency for old‑site overhaul work.

Designed for standard DIN‑rail installation, it can be deployed locally near field instruments to shorten analog signal cable length and reduce signal attenuation risk. Widely used in water treatment, food processing, chemical and light‑industry automation projects based on AC31 system. It is reliable hardware for process loop expansion, instrument signal adaptation and aging module replacement for legacy AC31 automation systems.