I. Basic Positioning

Type: Integrated PLC / Process Controller (CPU + Analog I/O + Digital I/O + Communication)

Applicable Systems: ABB AC31, S90, Advant DCS, Industrial Process Control (replacing the old model 07KT97)

Core Purpose: Independent control, data acquisition, closed-loop regulation, network monitoring for small and medium-sized process industries

II. Core Hardware Configuration

1. Analog I/O (Integrated)

Analog Input AI: 8 channels, supported

Voltage: ±5V, ±10V, 0–5V, 0–10V

Current: 0–20mA, 4–20mA

Temperature: PT100 (2/3-wire), 12-bit resolution

Analog Output AO: 4 channels

Voltage: ±10V (11-bit + sign)

Current: 0–20mA (12-bit)

AI can also be used as DI: 8 channels of AI can be configured as digital input

2. Digital I/O (Integrated)

Built-in digital input/output (board-level I/O, specific points depend on version)

3. Communication Interface (Critical)

Ethernet TCP/IP (network port): Modbus TCP, TCP/IP, upper-level networking

CANopen Master: Fieldbus, connects I/O slave stations, drives

CS31 Bus: Backplane bus, expands local I/O rack

III. Technical Parameters

Power Supply: 24V DC (18–32V DC)

Program Memory: Standard industrial grade (supports user programs, data storage)

Operating Temperature: 0℃ ~ +60℃; Storage: -25℃ ~ +75℃

Size (Width × Height × Depth): Approximately 120 × 80 × 65 mm

Weight: Approximately 500g

Programming: Compliant with IEC 61131-3 (Ladder Diagram, Function Block, Structured Text)

IV. Model Meaning

07KT98: 07K series, T=CPU, 98 = High-performance version (with Ethernet + CANopen)

GJR5253100R0278:

GJR5253100: 8AI + 4AO + CPU + Communication

R0278: Hardware version, Ethernet configuration (corresponding to R0270/R0278)

V. Typical Applications

Power: Auxiliary machine control in power plants, substation automation, data acquisition

Metallurgy / Chemicals: Closed-loop control of temperature / pressure / flow, small DCS replacement

Water Treatment: Pump station, dosing, filtration process control

Paper / Textiles: Independent control of production lines, network monitoring