Description

ABB 07KT98-S Advant Controller 31 Basic Unit

Configured for CPU processing, memory management, and controller communication in the Advant Controller 31 (AC31) system, the ABB 07KT98-S (07KT98 basic unit) provides direct hardware execution for PLC control tasks. The unit uses a Motorola 68020 processor, 1 MB internal RAM, expandable memory up to 4 MB, and interfaces including RS-232 and RS-422.

Hardware Specifications

Parameter	Specification
Model	07KT98-S
Base Model	07KT98
Spare / Part Number	GJR5253100R2260
Brand	ABB
Product Series	Advant Controller 31 (AC31) / Advant OCS
Module Type	Basic Unit / PLC CPU
Processor	Motorola 68020
Internal Memory	1 MB RAM
Maximum Memory	Up to 4 MB
I/O Capacity	Up to 120 Series 100 I/O points
Communication Interfaces	RS-232, RS-422, Ethernet options / communication ports
Programming	Advant Control Language (ACL) / standard AC31 programming software
Dimensions	10.0 x 6.0 x 4.0 in (25.4 x 15.2 x 10.2 cm)
Weight	Approx. 0.5 kg

PLC Backplane Communication and I/O Scaling

The 07KT98-S executes controller logic through its Motorola 68020 CPU and exchanges process data with connected AC31 I/O hardware. Its memory architecture provides 1 MB of internal RAM, while the supplied specification identifies expansion capability up to 4 MB.

The controller supports up to 120 Series 100 I/O points. Therefore, system configuration must account for the selected I/O modules, addressing structure, and controller communication interfaces.

The listed RS-232 and RS-422 interfaces support serial communication with compatible system equipment. Ethernet capability depends on the applicable hardware configuration or communication option.

Frequently Asked Questions (FAQ)

Q: What processor does the ABB 07KT98-S use?
A: The 07KT98-S uses a Motorola 68020 processor for PLC program execution and controller data processing.

Q: How much memory does the 07KT98-S provide?
A: The supplied specification lists 1 MB internal RAM with expansion capability up to 4 MB.

Q: What I/O capacity does the 07KT98-S support?
A: The supplied data specifies support for up to 120 Series 100 I/O points.

Field Installation Guidelines

• Install the basic unit in the designated AC31 controller assembly and maintain secure mechanical fastening.
• Verify connector orientation before applying power or inserting communication interfaces.
• Route communication cables separately from high-voltage and high-current conductors to reduce electrical interference.
• Use appropriate shield termination practices for serial communication cables according to the connected system design.
• Confirm the controller, I/O modules, memory configuration, and communication interfaces before commissioning.
• Do not perform module insertion, removal, or wiring changes while energized unless the applicable ABB hardware documentation explicitly permits hot-swap operation.
• Verify supply voltage and grounding requirements against the exact hardware revision before energizing the controller.

Specifications

• Brand: ABB

Advantages

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