ABB 07KT98 GJR5253100R0278 AC31 S90 PLC Basic Controller Unit

Technical Specifications

Model: 07KT98

Part Number: GJR5253100R0278

Brand: ABB

Product Type: AC31 S90 integrated PLC basic controller unit

Matching System: ABB AC31 automation control system

Power Supply: 24VDC, typical 0.55A

Built‑in I/O: 24DI /16DO /8 configurable DC channels, 8AI,4AO

Analog Signal: Voltage, current, Pt100 thermal resistance signal support

Communication Interface: Ethernet port, system internal bus

Program Standard: IEC61131‑3 programming standard

Memory: User program memory, retain memory, flash storage

High‑speed Counter: Max 50kHz counting frequency

Installation Method: DIN‑rail mounting

Operating Temperature: 0℃ ~ +55℃, non‑condensing

Protection Class: IP20

Weight: 0.78kg

Dimension: 240mm ×140mm ×85mm

Compatible System: Industrial production line, power auxiliary control, process automation equipment

Core Function: As core integrated controller of AC31 S90 PLC system, execute IEC61131‑3 user control program, complete local I/O signal acquisition and output, realize logic operation, arithmetic processing, high‑speed counting and Ethernet data communication, accomplish automatic control for on‑site industrial equipment.

Product Details

The 07KT98 GJR5253100R0278 is integrated basic controller unit for ABB AC31 S90 PLC system.

This 07KT98 controller integrates CPU, multiple digital and analog I/O channels inside one compact unit, no need to match extra base module. It follows IEC61131‑3 international programming standard, supports multiple programming languages for industrial control project development.

It collects digital and analog signals from field sensors, executes cyclic logic program scanning, and outputs control signals to drive on‑site actuators. Built‑in high‑speed counter function meets high‑frequency pulse acquisition requirement.

Equipped with Ethernet communication interface, it can realize data interaction with upper computer, HMI and other automation devices. Retain memory keeps important process data when power off.

Front‑panel LED status indicators display power, running, fault and I/O channel status, convenient for on‑site inspection and fault diagnosis.

Adopts standard DIN‑rail installation, easy for cabinet layout and equipment retrofit.

It is widely used in transformation and maintenance of old‑generation AC31 automation projects, power plant auxiliary control, manufacturing production line renovation.

It is important spare hardware for PLC system overhaul, control program debugging and defective 07KT98 controller replacement.