Product Introduction
In decentralized automation systems, the ABB 07 KT 98 provides a robust foundation for controlling complex processes. This basic unit from the Advant Controller 31 series integrates digital and analog I/O, real-time clock, and multiple communication interfaces. Designed for bus master, slave, or standalone operation, the 07 KT 98 enables flexible system architectures.
Technical Specifications
The ABB 07 KT 98 combines powerful processing with extensive I/O capabilities. Key parameters include:
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Program Memory: 1 MB user program, 1 MB user data plus 256 kB RETAIN and 128 kB Flash EPROM
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Digital I/O: 24 digital inputs, 16 transistor outputs, 8 configurable digital I/O (all in electrically isolated groups)
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Analog I/O: 8 analog inputs (0...10 V, 0...5 V, ±10 V, ±5 V, 0...20 mA, 4...20 mA, Pt100) and 4 analog outputs (0...10 V, 0...20 mA, 4...20 mA)
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Processing Speed: 0.07 ms for 1 kB of program (65% bits, 35% words)
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Communication: dual MODBUS serial interfaces, CS31 system bus, and parallel interface for couplers like 07 KP 90
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High-Speed Counters: up to 50 kHz with 7 configurable modes
All values are derived directly from the product datasheet to ensure accuracy.
Industry Applications and Upgrade Benefits
The ABB 07 KT 98 excels in upgrading older automation systems. Its faster cycle time (0.07 ms) improves responsiveness in packaging, material handling, and process control. For example, replacing an older AC31 basic unit with the 07 KT 98 reduces program execution delay while adding Pt100 temperature input support and enhanced MODBUS connectivity. The unit’s SmartMedia Card allows quick firmware updates and program reloads, minimizing downtime during upgrades.
Compatibility and Integration
The 07 KT 98 integrates seamlessly with the Advant Controller 31 ecosystem. It supports communication modules such as 07 KP 90 (RCOM), 07 KP 93 (2x MODBUS), and 07 MK 92 (freely programmable). The CS31 system bus enables expansion up to 1040 digital I/O and 232 analog inputs. Serial interfaces COM1 and COM2 serve as MODBUS master/slave or programming ports. The unit also includes a parallel interface for couplers and an ARCNET or PROFIBUS-DP option via the 907 AC 1131 software version. All connections use detachable screw-type terminal blocks for simplified wiring.
Selection Guide and Purchasing Advice
When selecting the ABB 07 KT 98, verify your power supply delivers 24 V DC. Confirm compatibility with existing I/O modules and communication protocols. For data retention, order the lithium battery 07 LE 90 separately. The unit mounts on DIN rail or with screws. For reliable supply and technical support, purchase from UBEST Automation (available at ubest101). Ensure you have the correct programming software version (907 AC 1131 V 4.1 or later) for your interface type.