WhatsApp:+86 18150087953 WeChat: +86 18150087953 
Email：
Description
Technical Specifications
| Parameter Name | Value |
|---|---|
| Product Model | ABB 07KT98 (WT98) |
| Order Number | GJR5253100R0278 |
| Manufacturer | ABB (Sweden) |
| Product Type | Basic Unit / PLC CPU Controller |
| System Platform | ABB Advant Controller 31 (AC31) / Advant OCS |
| Processor | 32-bit RISC Architecture |
| User Program Memory | 1 MB Flash EPROM |
| Data Memory | 1 MB RAM + 256 kB RETAIN |
| Digital Inputs | 24 channels, 24V DC, optically isolated |
| Digital Outputs | 16 channels, 24V DC transistor outputs, 0.5 A/point |
| Analog Inputs | 8 channels, configurable (0-10V, ±10V, 0-20mA, 4-20mA, Pt100 2/3-wire) |
| Analog Outputs | 4 channels, configurable (±10V, 0-20mA, 4-20mA) |
| System Bus | CS31 Bus (1 channel, supports up to 31 remote I/O stations) |
| Communication Interfaces | COM1/COM2: RS-232/485 (MODBUS, programming) |
| Fieldbus Support | Ethernet TCP/IP, PROFIBUS-DP, ARCNET (depends on hardware variant) |
| Programming Software | 907 AC 1131 (IEC 61131-3: LD, FBD, SFC, IL, ST) |
| Data Backup | Lithium battery-backed RAM; SmartMedia Card for program/data storage |
| Power Supply | 24V DC (±15%) |
| Power Consumption | ≤ 15 W |
| Operating Temperature | 0°C to +55°C |
| Storage Temperature | -25°C to +75°C |
| Protection Rating | IP20 (cabinet installation) |
| Dimensions | Approx. 130 mm × 137 mm × 85 mm (H×W×D) |
| Weight | Approx. 1.0 kg |
| Product Status | Original manufacturer discontinued (EOL) – spare parts channel only |
Main Features and Advantages
High-Density Integrated I/O:
The ABB 07KT98 stands out for its exceptional I/O integration, providing 24 digital inputs, 16 digital outputs, 8 analog inputs, and 4 analog outputs directly on the base unit . This high-density design allows the ABB GJR5253100R0278 to handle substantial control tasks without requiring additional I/O modules, significantly reducing cabinet space requirements and overall system cost . The analog inputs support multiple signal types including voltage, current, and Pt100 RTDs, offering flexibility for diverse sensor applications . Each digital channel includes LED status indication for rapid visual diagnostics, simplifying troubleshooting and maintenance .
Robust Communication and Bus Management:
The ABB 07KT98 is equipped with comprehensive communication capabilities that enable seamless integration into distributed architectures. Its CS31 system bus supports up to 31 remote I/O stations, allowing the ABB GJR5253100R0278 to serve as a powerful master controller in large-scale automation networks . Additionally, two serial COM ports provide RS-232/485 interfaces for MODBUS connectivity, programming access, and HMI integration . Depending on the hardware variant, the ABB 07KT98 can support Ethernet TCP/IP, PROFIBUS-DP, or ARCNET fieldbuses, ensuring compatibility with a wide range of industrial devices and supervisory systems .
Comprehensive Data Storage and Security:
The ABB 07KT98 incorporates multiple data storage options to ensure program integrity and operational continuity. Its 1 MB Flash memory stores user applications, while battery-backed RAM preserves critical data during power interruptions . The SmartMedia card slot provides convenient external storage for program backups, data logging, and firmware updates . This redundancy in storage makes the ABB GJR5253100R0278 a reliable choice for applications where data persistence is essential. The integrated real-time clock further enhances time-stamping capabilities for event logging and sequence control.
IEC 61131-3 Programming Flexibility:
Engineers appreciate the ABB 07KT98 for its full compliance with the IEC 61131-3 programming standard, supporting multiple languages including Ladder Diagram, Function Block Diagram, Sequential Function Chart, Structured Text, and Instruction List . The 907 AC 1131 software environment provides powerful tools for program development, simulation, and online debugging, enabling efficient engineering workflows. This programming flexibility allows the ABB GJR5253100R0278 to accommodate diverse application requirements, from simple relay logic to sophisticated process control algorithms.
