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1784-KTCS

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The Allen-Bradley 1784-KTCS is a ControlNet scanner card engineered to provide high-performance network interfacing for legacy industrial computing platforms.
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Technical specifications for 1784-KTCS

  • Manufacturer:
    Allen-Bradley
  • Part Number:
    1784-KTCS
  • Product Family:
    PLC-5
  • Product Type:
    ControlNet ISA-bus scanner card
  • Stock:
    1
  • Compatibility:
    16-bit ISA / 32-bit EISA
  • Input Voltage Ratings:
    5 VDC
  • Max. Input Current:
    640 mA
  • Max. Cards Per Computer:
    4 Cards per Computer
  • Weight:
    0.16 kg
  • Estimated shipping dimensions:
    2.2x18x12.6cm
  • Tariff Code:
    8537101190
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Specifications Use Cases Installation & Integration Firmware & Updates

Features:

  • Interface Between the ISA/EISA Bus and ControlNet Network
  • Combines Capability of High-Speed ControlNet Communication with Multi-Module Rack Support
  • Operates in Conjunction with PLC-5 Processors and ControlNet Field Devices
The Allen-Bradley 1784-KTCS ControlNet ISA-bus scanner card serves as the dedicated communication interface between industrial PCs and ControlNet networks, providing reliable deterministic data exchange for PLC-5 control systems. It continuously facilitates real-time I/O data transfer and peer-to-peer messaging between controllers at communication rates up to 5 Mbps, distributing control commands and status information across the network to support steady state operation of all connected devices and modules.

The 1784-KTCS provides essential communication functions common to the entire ControlNet infrastructure, and is a critical component of the control path, directly affecting the proper, normal operation of the overall PLC-5 system. Up to four 1784-KTCS cards are supported per computer depending on the desired communication capacity. The 1784-KTCS occupies only a single ISA or EISA slot in the host computer and is always installed in an available expansion slot position.

For expanded network applications, the 1784-KTCS system supports multiple 1784-KTCS scanner cards installed in the same host computer. In addition to standard single card operation, the multi-card configuration also performs distributed network load balancing. The 1784-KTCS multi-card configuration executes communication management using the internal bus interface specified in the card specifications.

The 1784-KTCS Allen-Bradley ControlNet ISA-bus scanner card may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Allen-Bradley 1784-KTCS ControlNet ISA-bus scanner card Manuals,Datasheets,Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Allen-Bradley 1784-KTCS ControlNet ISA-bus scanner card Specs

General

  • Manufacturer Allen-Bradley
  • Model 1784-KTCS
  • Condition New Original ready stock
  • Product Family 1784-KTCX,1784-KTC
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
  • Industrial Communication Bridging: Connects legacy computer systems directly to ControlNet networks. It enables a standard industrial PC to acts as a master controller, configuration terminal, or diagnostic tool.
  • I/O Scanning & Control: Serves as an active ControlNet node capable of full I/O scanning, monitoring, and real-time data exchange with programmable logic controllers (PLCs), remote I/O blocks, and drive systems.
  • Legacy System Support: Designed explicitly for 16-bit ISA and 32-bit EISA expansion bus slots. This makes it essential for maintaining, upgrading, or extracting data from vintage industrial workstations and HMIs that rely on legacy architecture.
  • Multi-Module Scalability: Supports configurations of up to four cards per computer, allowing a single host terminal to scan and manage multiple independent networks simultaneously.
  • Hardware Preparation: Ensure the host machine is completely powered off and disconnected. Always wear an anti-static grounding wrist strap to protect the electronic components from electrostatic discharge (ESD).
  • Configuration Settings: Before slotting the card, verify memory addresses, I/O addresses, and interrupt levels (IRQs) using onboard switches or jumpers. Ensure these parameters do not conflict with existing hardware in the host PC.
  • Physical Insertion: Insert the card firmly into an available 16-bit ISA or 32-bit EISA expansion slot and secure the mounting bracket to the chassis.
  • Network Hookup: Connect the dual-port BNC connectors directly to the tap or trunk cable of the physical ControlNet architecture. If necessary, use the Network Access Port (NAP) via specialized interface cables for configuration terminal hookups.
  • Driver & Software Dependencies: Requires software layers such as RSLinx or IOLinx to handle the configuration and communication routing between the PC operating system and the ControlNet hardware.
  • Flashing Process: Firmware updates are usually bundled into specific patch tools. To upgrade the firmware, run the unzipped installation setup.exe package on a compatible operating system environment (typically legacy environments like Windows 2000/XP or NT 4.0 depending on the exact hardware series revision).
Description
The 1784-KTCS is a specialized ControlNET scanner card produced by Allen-Bradley, designed to provide high-speed, deterministic communication between PLC-5 controllers and field devices over the ControlNet network. This card is compatible with both 16-bit ISA and 32-bit EISA systems, making it a versatile solution for legacy industrial computing platforms. The 1784-KTCS operates under a standard input voltage rating of 5 VDC and can draw a maximum input current of 640 mA, which is essential for its efficient function in continuous industrial operations.

The 1784-KTCS is specifically engineered to address the challenges of real-time data exchange in manufacturing environments where multiple PLC-5 processors need to share I/O data and program information seamlessly. By integrating the 1784-KTCS into the system architecture, engineers can eliminate communication bottlenecks and ensure deterministic control over complex automation processes. This scanner card supports up to four modules per computer, allowing for extensive configuration options depending on system requirements and enabling scalable network topologies without compromising performance.

In terms of application domains, the 1784-KTCS finds widespread use across process control industries, automotive assembly lines, material handling systems, and packaging operations where reliable peer-to-peer communication between controllers is critical. The 1784-KTCS enables synchronized motion control, coordinated safety interlocks, and distributed I/O management across large production facilities. Its robust design ensures that the 1784-KTCS performs reliably even in environments with relative humidity levels from 5% up to 95%, providing assurance against moisture that could potentially cause operational issues.
Alternative Names
1784KTCS 178A-KTCS 178AKTCS 17B4-KTCS 17B4KTCS I784-KTCS 1784-KTCX 1784-KTS 1784-KTC 1784-PKTCS
Technical notes
The 1784-KTCS from Allen Bradley is a ControlNET scanner card designed for PLC 5 systems. It supports 16-bit ISA and 32-bit EISA compatibility, functioning with an input voltage of 5 VDC at a maximum current of 640 mA.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
What is the Allen-Bradley 1784-KTCS used for?
The Allen-Bradley 1784-KTCS is a ControlNet ISA-bus scanner card designed to connect legacy industrial computers to ControlNet networks for reliable real-time data communication.
What problems does the 1784-KTCS solve?
It enables deterministic, high-speed data exchange between ISA/EISA-based computers and ControlNet systems, helping maintain synchronized communication in industrial automation applications.
Why is the 1784-KTCS important for legacy control systems?
It allows older industrial PCs to communicate with ControlNet devices, extending the service life of existing automation systems without requiring immediate controller replacement.

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