ABB 07KT97-ARCNET
ABB 07KT97-ARCNET
ABB 07KT97-ARCNET

ABB 07KT97-ARCNET | AC800M Series ARCNET Communication Module

  • Brand: ABB
  • Model: 07KT97-ARCNET
  • Product Type: ARCNET Communication Module
  • Series: AC800M Communication Modules
  • Core Function: Provides ARCNET network interface for ABB AC800M controllers to connect with ARCNET-enabled field devices (e.g., remote I/O, drives), enabling deterministic data exchange in industrial automation systems.
  • Key Specs: Supports ARCNET protocol (2.5Mbps), up to 255 nodes per network, -25°C to +60°C operating temperature, 24V DC power supply.
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Part number: ABB 07KT97-ARCNET
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Description

07KT97-ARCNET: Product Overview
This component is an ARCNET communication module within ABB’s AC800M series, designed for industrial automation systems requiring deterministic fieldbus integration with ARCNET-enabled devices. In a PLC/DCS architecture, it functions as a network interface, positioned in the AC800M controller’s communication slot to bridge the controller with ARCNET networks (e.g., remote I/O stations, legacy drives, or third-party systems). Its role is to manage data exchange—transmitting control commands from the controller to field devices and relaying device status/feedback—while adhering to ARCNET protocol standards for time-sensitive communication.
The core functionality involves encoding/decoding ARCNET signals, handling token-passing arbitration (for deterministic access), and managing node addressing (up to 255 devices per network). It supports 2.5Mbps transmission rates, with data capacity of 508 bytes per message. The module includes built-in diagnostics for network errors (e.g., token loss, node timeouts) and link status monitoring, aiding in troubleshooting.
It belongs to the AC800M Communication Modules family, optimized for backward compatibility with legacy ABB systems and integration with modern automation platforms. The platform’s benefits include standardized mounting to AC800M chassis, seamless configuration via ABB’s Control Builder M software, and adherence to ANSI/ATA 878.1 (ARCNET standard)—ensuring interoperability with older ABB Master Piece or System 800xA installations. This reduces system integration time for phased modernization projects.

ABB 07KT97-ARCNET

ABB 07KT97-ARCNET

07KT97-ARCNET: Technical Specifications
  • Model Number: 07KT97-ARCNET
  • Manufacturer: ABB
  • Product Type: ARCNET Communication Module
  • Protocol Support: ARCNET (ANSI/ATA 878.1, token-passing)
  • Transmission Rate: 2.5Mbps (fixed)
  • Number of Nodes: Up to 255 per ARCNET network segment
  • Data Capacity: 508 bytes per message (input/output combined)
  • Power Supply: 24V DC (±10% tolerance, drawn from AC800M backplane)
  • Operating Temperature: -25°C to +60°C
  • Storage Temperature: -40°C to +85°C
  • Electrical Isolation: 500Vrms (channel-to-bus, channel-to-ground)
  • Connector Type: 9-pin D-sub (female, for ARCNET coaxial/UTP connection)
  • Dimensions: 30mm x 100mm x 120mm (WxHxD, fits AC800M controller slot)
  • Weight: 0.16kg
Core Features & Customer Value​
The module’s design prioritizes legacy system compatibility, deterministic communication, and operational reliability. ARCNET protocol support ensures seamless integration with older ABB installations (e.g., Master Piece 200/300 PLCs) or third-party devices still using ARCNET, avoiding costly network overhauls. The 2.5Mbps token-passing mechanism guarantees bounded latency (critical for time-sensitive applications like packaging line synchronization), unlike CSMA/CD protocols prone to collisions.
Up to 255 nodes per segment simplifies network topology for medium-sized systems (e.g., a food processing plant with 50 sensors and 30 actuators), reducing the need for additional hubs or repeaters. The 500Vrms isolation prevents ground loops and transient voltage spikes from corrupting data—essential in environments with heavy machinery (e.g., bottling lines with motor drives), where electromagnetic interference is common.
Integration with Control Builder M software streamlines configuration: engineers define node addresses, message mapping, and diagnostic thresholds via a graphical interface, with automatic generation of network status tags. This consistency with other AC800M modules reduces training time and minimizes configuration errors. Built-in diagnostics (e.g., token rotation time monitoring, node offline alerts) provide actionable insights, allowing maintenance teams to address network issues before they disrupt production.

ABB 07KT97-ARCNET

ABB 07KT97-ARCNET

Typical Applications​
In an automotive parts manufacturing line, the module connects an ABB AC800M controller to 20 ARCNET remote I/O stations (monitoring press sensors) and 10 legacy ARCNET drives (controlling conveyor motors). The 2.5Mbps deterministic communication ensures synchronized press-stamping cycles, while diagnostics alert operators to a failed I/O station (token timeout), minimizing line stoppages.
At a chemical batch processing facility, it interfaces the controller with ARCNET-enabled valve positioners and temperature transmitters. The 255-node capacity covers all field devices in a single segment, and the -25°C to +60°C operating range suits climate-controlled control rooms. Token-passing arbitration prevents data collisions during peak batch-reporting periods.
In a legacy paper mill’s DCS upgrade, the module bridges a new AC800M controller with existing ARCNET-based sensors (e.g., web tension monitors). This avoids rewiring the entire plant, cutting integration costs by 40% compared to migrating to Ethernet. Isolation protects against EMI from造纸 machinery.

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