The ABB 07 KT 97 is a high-performance basic unit (CPU module) within the Advant Controller 31 intelligent decentralized automation system. It integrates powerful processing capabilities, rich integrated I/O interfaces, and flexible communication options. It can function as the master station on the CS31 system bus to build powerful distributed control systems, or serve as a remote intelligent slave station or a standalone controller. It is an ideal core controller for meeting mid-to-high-end industrial automation application requirements.
As the standard high-performance model in this series, the 07 KT 97 R0200 offers up to 480 kB of user program memory and 256 kB of user data memory. It integrates digital, analog, high-speed counter, and various communication interfaces, enabling tight integration of the controller with field signals. This reduces reliance on external expansion modules and enhances system compactness and reliability.
2. Core Features and Overview
2.1 Powerful Processing and Memory
User Program Memory: 480 kB Flash EPROM, supporting complex control logic.
User Data Memory: 256 kB for storing process variables, recipes, etc., with battery backup support.
Processing Speed: Typical processing time of 0.3 ms/kB of program (65% bit instructions, 35% word instructions), ensuring fast program scan cycles.
2.2 Rich Integrated I/O Resources (example: 07 KT 97 R0200)
Digital Inputs (DI): 24 channels, divided into 3 groups (8 channels each), with electrical isolation between groups and from the system, supporting 24V DC signals.
Digital Outputs (DO): 16 transistor outputs, divided into 2 groups (8 channels each), with isolation between groups. Each channel has a rated load of 0.5A, featuring short-circuit and overload protection.
Digital Inputs/Outputs (DIO): 8 configurable channels that can be individually set as inputs, outputs, or re-readable outputs, integrated into one isolated group.
Analog Inputs (AI): 8 high-precision, individually configurable inputs. Each channel can be independently set to:
Voltage input: 0…10 V, 0…5 V, ±10 V, ±5 V
Current input: 0…20 mA, 4…20 mA
Temperature input: Pt100 RTD (2-wire or 3-wire)
Differential input: For common-mode noise rejection
Digital input: Can be used as ordinary 24V DC digital inputs.
Analog Outputs (AO): 4 configurable outputs supporting ±10 V, 0…20 mA, 4…20 mA signals.
2.3 Advanced Communication and Network Integration Capabilities
CS31 System Bus Interface: For connecting Advant Controller 31 distributed remote I/O modules (e.g., previously mentioned 07 DC 92, 07 DI 92), expandable up to 992 digital I/O points or 224 analog channels.
Serial Interfaces: 2 independent RS-232 interfaces (COM1, COM2) for programming, debugging, connecting to operator panels, or acting as MODBUS master/slave.
Optional Integrated Network Interfaces: The 07 KT 97 offers various versions, optionally integrating the following high-performance fieldbus or industrial Ethernet interfaces for seamless integration with upper-level networks or third-party devices:
PROFIBUS-DP: Compliant with EN 50170 standard, can act as master or slave.
ARCNET: For building high-performance deterministic control networks.
Ethernet: Supports 10/100Base-TX, TCP/IP, UDP/IP, Modbus TCP protocols.
CANopen: Compliant with ISO 11898 standard, can act as master.
Combination Interfaces: Such as Ethernet + PROFIBUS, ARCNET + PROFIBUS, etc., offering great connection flexibility.
2.4 Special Functions and Advanced Features
High-Speed Hardware Counter: Integrated high-speed counter using dedicated input channels (E62.00, E62.01), maximum counting frequency of 50 kHz, supports 7 configurable operating modes (e.g., single-phase, quadrature encoder, frequency measurement), operates independently of the PLC cycle.
Real-Time Clock: Integrated hardware clock for timestamps, scheduled tasks, etc.
SmartMedia Card: Supports using the 07 MC 90 memory card (2 MB or 8 MB) for backing up user programs/data or performing firmware updates, greatly facilitating project maintenance and mass production.
Comprehensive Diagnostics and Status Indication: The front panel features up to 60 LEDs, clearly displaying:
Status of all digital I/O points (green/yellow LEDs).
Power, battery, and run status (RUN).
Error levels (FK1 Fatal Error, FK2 Serious Error, FK3 Light Error).
Bus status (BA Bus Active, BE/RE/SE Bus Errors).
Output overload/short-circuit alarm.
Data Retention: Via a replaceable lithium battery module 07 LE 90 (typical life 5 years) to maintain the user program, data, and real-time clock in RAM during power loss.
3. Hardware Design and Connections
3.1 Front Panel Layout and Operating Elements
The front panel is intuitively designed, integrating all status indicators and basic operating components:
Terminal Block Area: Uses removable screw terminal blocks for easy wiring. Terminals are clearly zoned corresponding to different I/O groups.
LED Indicator Area: Densely arranged I/O status lights and system status lights.
Operation Control: RUN/STOP switch for starting/stopping the user program.
Communication Ports: COM1 and COM2 serial interfaces.
Memory Card Slot: For inserting the SmartMedia card.
Battery Compartment: Located on the side of the module for installing the backup battery.
3.2 Electrical Isolation Design
The 07 KT 97 employs meticulous electrical isolation design, key to its high reliability:
Digital Inputs: 3 groups (8 points each) isolated from each other and from the rest of the system.
Digital Outputs: 2 groups (8 points each) isolated from each other and from the rest of the system.
Digital Inputs/Outputs: 1 group of 8 points, isolated from the rest of the system.
Analog Signals: The analog input and output groups are internally non-isolated, but their reference grounds (AGND1, AGND2) are allowed a certain potential difference (±1V) from the digital ground and power ground. Reliable operation is achieved using shielded cables and proper grounding.
Communication Interfaces: CS31 bus and serial interfaces COM1/COM2 are isolated from internal circuits.
Power Supply: 24V DC input has reverse polarity protection.
3.3 Power Supply and Grounding
Power Supply: 24 V DC (±15%), connected via a 5-pin terminal block. A stable and reliable industrial switching power supply is recommended.
Grounding: Provides a Protective Earth (PE) terminal and a Faston grounding terminal. It is emphasized that these must be connected to the control cabinet's grounding system, avoiding ground loops. Shields of analog signal cables should be grounded at a single point on the controller side.
4. Application Scenarios
With its powerful integrated functions and expansion capabilities, the ABB 07 KT 97 is suitable for numerous demanding industrial automation fields:
Standalone Machine Control: As a high-performance standalone controller, directly processing large numbers of local I/O signals (e.g., sensors, actuators, analog setpoints for drives). Suitable for packaging machinery, printing presses, injection molding machines, test benches, etc.
Master Station in Distributed Control Systems: As the master controller on the CS31 system bus, connecting remote I/O stations (e.g., 07 DC 92, 07 DI 92) distributed throughout the equipment, building clean and reliable systems for automotive body lines, assembly lines, material handling systems.
Process Control Subsystem: Utilizing its analog processing capabilities and PID functions (via software) for controlling process parameters like temperature, pressure, and flow. Can serve as an intelligent front-end for large DCS or SCADA systems.
Networked Manufacturing Cell: Through its integrated PROFIBUS-DP or Ethernet interface, seamlessly integrating into factory-level industrial networks for data exchange with upper-level MES/ERP systems, HMI panels, drive devices, and other PLCs.
Data Logging and Recipe Management: Leveraging the high-capacity memory card function for easy production data logging, equipment parameter backup, and switching between different product recipes.
5. Versions and Selection Guide
The 07 KT 97 offers multiple versions to adapt to different connection needs. Users should select based on network planning:
R0100, R0200: Standard version, with CS31 bus interface only.
R0120, R0220: Integrated PROFIBUS-DP interface.
R0160, R0260: Integrated ARCNET interface.
R0162, R0262: Integrated ARCNET + PROFIBUS-DP dual interface.
R0268: Integrated ARCNET + CANopen dual interface.
R0270: Integrated Ethernet interface.
R0272: Integrated Ethernet + PROFIBUS-DP dual interface.
R0276: Integrated Ethernet + ARCNET dual interface.
R0277: Integrated Dual Ethernet interface.
R0278: Integrated Ethernet + CANopen dual interface.
R0280: Integrated CANopen interface.
Note: The main difference between the R01xx and R02xx series lies in support for SmartMedia cards (R02xx supports both 3.3V and 5V cards, and may have faster processing speeds).
6. System Advantages Summary
High Integration: Rich I/O and communication resources integrated into a single module, reducing the number of system components, improving reliability, and saving cabinet space.
Outstanding Performance: Powerful processing capabilities, high-speed counter, and large memory capacity to handle complex control tasks and algorithms.
Flexible Expansion: Large-scale I/O expansion via the CS31 bus; easy integration into any existing factory automation architecture through multiple optional integrated network interfaces.
Ease of Use and Maintenance: Clear LED diagnostics, pluggable terminals, easily replaceable battery and memory card greatly simplify installation, commissioning, and maintenance.
Robust and Reliable: Industrial-grade design, wide temperature range, comprehensive electrical isolation, and protection circuits ensure long-term stable operation in harsh industrial environments.
Future-Oriented: Support for Industrial Ethernet and mainstream fieldbuses lays a solid foundation for enterprise digitalization and intelligent upgrades.
7. Ordering Information
Basic Model: 07 KT 97 R0200 (Standard high-performance version with CS31 bus)
Order Number: GJR5 2530 00 R0200
Delivery Scope Includes:
Basic Unit 07 KT 97
1 x 5-pin terminal block (5.08 mm)
1 x 3-pin terminal block (5.08 mm)
3 x 10-pin terminal blocks (3.81 mm)
4 x 9-pin terminal blocks (3.81 mm)
1 x 5-pin terminal block (3.81 mm)
Key Accessories:
