Product Overview
The ABB 07 KT 97 is a central unit terminal blocks module designed for demanding industrial control applications. This compact unit integrates 24 digital inputs, 16 digital transistor outputs, 8 configurable digital I/O, 8 analog inputs, and 4 analog outputs, making it a versatile building block for PLC systems. The ABB 07 KT 97 supports I/O expansion via the CS31 system bus, allowing up to 992 digital I/O points and 224 analog channels across 31 remote modules. Its integrated memory includes 512 kB Flash EPROM and 2 MB RAM, ensuring reliable program execution with a typical processing time of 0.3 ms per kB of program (65% bits, 35% words).
Technical Specifications
The ABB 07 KT 97 offers a comprehensive set of technical specifications that ensure high performance and flexibility. Key parameters include:
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Digital Inputs: 24 channels, 3 groups of 8, with optocoupler isolation, input signal delay typ. 7 ms (configurable to 1 ms), and high-speed counter support on channels E 62.00 and 62.01.
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Digital Outputs: 16 transistor outputs, 2 groups of 8, rated 500 mA per channel (max. 625 mA), short-circuit proof, and overload protected.
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Analog Inputs: 8 channels configurable for 0...10 V, 0...5 V, ±10 V, ±5 V, 0...20 mA, 4...20 mA, and Pt100 RTD (2/3-wire). Input impedance >100 kΩ (voltage) and ca. 330 Ω (current).
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Analog Outputs: 4 channels (specifications as per documentation).
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Power Supply: Rated 24 V DC, max. 0.35 A consumption, reverse polarity protection.
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Memory: Program memory 480 kB Flash EPROM + RAM, 2 MB RAM overall, 8192 bit flags, 8192 word flags, 1024 double word flags, 256 step chains, 1440 constants KW, 384 constants KD.
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Battery Backup: Uses 07 LE 90 battery module, lifetime typ. 5 years at 25°C.
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Real-Time Clock: Resolution 1 second.
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High-Speed Counter: 7 operating modes, counting range -32768...+32767, max. 50 kHz.
Industry Applications
The ABB 07 KT 97 central unit is ideal for automation tasks in manufacturing, material handling, and process control. For example, in a packaging line, the 24 digital inputs can monitor sensor status, while 16 transistor outputs control actuators. The 8 analog inputs handle temperature or pressure transducers (Pt100, 4...20 mA), and the 4 analog outputs provide setpoints to drives. The CS31 system bus enables remote I/O expansion, making the ABB 07 KT 97 suitable for distributed control architectures. With support for protocols like Profibus DP, MODBUS, and ARCNET, it integrates seamlessly into existing PLC networks.
Installation & Setup Guidance
Mount the ABB 07 KT 97 on a DIN rail using the integrated clip. Use removable screw-type terminal blocks for wiring: power supply connections accept max. 1 x 2.5 mm² or 2 x 1.5 mm²; other terminals max. 1 x 1.5 mm². Shielded cables for analog inputs can run up to 1000 m; unshielded digital input cables up to 600 m. Ensure the supply voltage is 24 V DC with reverse polarity protection active. For the high-speed counter, use channels E 62.00 and 62.01. Configure inputs via the programming system 907AC1131.
Compatibility & Integration
The ABB 07 KT 97 communicates over the CS31 system bus for I/O expansion. It includes two serial interfaces (for programming or HMI) and one parallel interface for a communication processor to connect to other bus systems (e.g., Profibus DP, ARCNET, MODBUS). The module is programmed using the 907AC1131 system, supporting cyclic and time-controlled multitasking (20 tasks). It can accommodate up to 31 remote modules, handling a total of 1040 digital I/O and 232 analog inputs / 228 analog outputs. The integrated Smart Media Card slot allows program reloading and data storage.
Selection Guide & Purchasing Advice
Before purchasing the ABB 07 KT 97, verify that your control system supports the CS31 bus and 24 V DC power. Consider the required I/O count and whether expansion via remote modules is needed. The unit includes a lithium battery (07 LE 90) for RAM backup; ensure you order spares for long-term maintenance. UBEST Automation stocks the ABB 07 KT 97 as a new, original component, ready for same-day dispatch. For technical support or to verify system compatibility, contact UBEST Automation's sales team.