Description

ABB 07KT97 GJR5253000R0276 Advant Controller 31 Basic Unit

Configured for logic execution, integrated I/O processing, counting, and serial communication in the AC31 control system, the ABB 07KT97 GJR5253000R0276 (07KT97 Basic Unit) provides direct electrical execution. The unit integrates CPU processing, program and data memory, digital and analog I/O, high-speed counters, CS31 communication, serial interfaces, and removable memory support within one PLC basic unit.

Hardware Specifications

Parameter	Specification
Model	07KT97 GJR5253000R0276
Base Model	07KT97
Brand	ABB
Product Type	Advant Controller 31 Basic Unit / CPU
Series	Advant Controller 31 (AC31)
User Program Memory	480 kB
User Data Memory	256 kB
Memory Type	Flash EPROM / non-volatile RAM
Execution Speed	Approx. 0.3 ms per 1000 instructions, based on 65% logic and 35% word instructions
Digital Inputs	24 channels, 24 VDC, arranged in 3 groups of 8, electrically isolated
Digital Outputs	16 channels, transistor type, 24 VDC / 0.5 A, arranged in 2 groups of 8, isolated
Configurable Digital I/O	8 channels, individually configurable
Analog Inputs	8 channels, individually configurable
Analog Input Ranges	0-10 V, 0-5 V, -10 to +10 V, -5 to +5 V, 0-20 mA, 4-20 mA, Pt100, or digital input
Analog Outputs	4 channels, individually configurable
Analog Output Ranges	-10 to +10 V, 0-20 mA, 4-20 mA
High-Speed Counters	2 channels
Maximum Counter Frequency	Up to 50 kHz
System Bus	1 x CS31 system bus interface
Built-in Network Interfaces	Ethernet / ARCNET, depending on specific sub-version configuration
COM1	RS232 for programming, Modbus Master/Slave, or ASCII communication
COM2	RS232 for Modbus Master/Slave or ASCII communication
Memory Card Interface	SmartMedia Card / memory card slot
Supply Voltage	24 VDC
Operating Temp	0 deg C to +55 deg C
Data Backup	Lithium battery backup supported, including 07 LE 90
Programming Software	907 AC 1131
Origin	SWEDEN

AC31 I/O Density and Firmware Flash Compatibility

The 07KT97 integrates processing functions and mixed signal I/O within the basic unit. Consequently, the controller can execute digital logic while processing analog voltage, current, and Pt100 input signals without requiring all functions to be assigned to external modules.

The CS31 system bus provides the electrical communication path for decentralized I/O expansion. Therefore, installation planning should consider controller configuration, bus topology, and connected module addressing as part of the complete AC31 system configuration.

The unit also uses non-volatile memory and removable memory support for program and data handling. Firmware and application compatibility should be checked against the installed controller hardware revision and the 907 AC 1131 engineering environment before loading or transferring application data.

Frequently Asked Questions (FAQ)

Q: Can the 07KT97 analog input channels accept both voltage and current signals?
A: Yes. Each analog input channel can be individually configured for specified voltage ranges, 0-20 mA, 4-20 mA, Pt100 measurement, or digital input operation.

Q: Are the integrated high-speed counters suitable for fast pulse signals?
A: Yes. The unit provides two hardware counter channels with operation up to 50 kHz. Signal wiring and electrical noise control should be considered when connecting high-frequency pulse sources.

Q: Does the 07KT97 support external I/O expansion?
A: Yes. The integrated CS31 system bus interface supports decentralized I/O expansion within the Advant Controller 31 system architecture.

Field Installation Guidelines

Install the 07KT97 in accordance with the applicable AC31 mounting and electrical installation requirements. Verify the 24 VDC supply polarity and provide suitable upstream circuit protection before energizing the controller.

Route analog, counter, and communication wiring separately from high-current switching conductors. In addition, use appropriate shielded cables where required by the connected signal type and ground cable shields according to the overall control cabinet grounding concept.

Before connecting external I/O, confirm the configured electrical range for each channel. For example, do not connect a 4-20 mA loop to a channel configured for an incompatible voltage range.

Check RS232 communication parameters and protocol settings before connecting programming equipment or Modbus devices. Likewise, verify CS31 bus wiring and module configuration before commissioning decentralized I/O.

Do not insert or remove wiring connections while the installation is energized unless the applicable system documentation explicitly permits the procedure. Finally, back up the application and verify battery-supported memory requirements before replacing or servicing the controller.

Specifications

• Brand: ABB

Advantages

• High reliability in industrial environments
• Supports continuous operation
• Compatible with major PLC/DCS systems