Allen Bradley 1784-PCICS ControlNet PCI Communication Interface Card

Product Overview

The Allen Bradley 1784-PCICS acts as a high-performance bridge between industrial PC architectures and ControlNet networks. This PCI-bus interface card enables a standard computer to function as a powerful controller or a diagnostic workstation within a ControlNet environment. We offer this unit as 100% Brand New and Factory Original, providing the precise timing and data determinism required for complex I/O scanning and peer-to-peer messaging.

Technical Specifications

The 1784-PCICS utilizes specialized hardware to manage high-speed industrial data traffic without taxing the host PC’s primary CPU:

Engineering Advantages

• Dual-Channel Determinism: The 1784-PCICS incorporates two BNC ports, supporting redundant media configurations. This hardware redundancy ensures that the control network maintains communication even if one coaxial cable segment sustains physical damage or interference.

• Offboard Processing Power: This card handles the intensive "Scanner" logic locally on its own processor. By managing the cyclic I/O updates independently, it prevents the Windows or Linux host OS from introducing jitter into the control loop.

• Versatile PCI Compatibility: The universal PCI keying allows the card to seat into both legacy 5V and modern 3.3V PCI slots. This flexibility simplifies the hardware replacement process when upgrading industrial PCs while maintaining existing field wiring.

• Deterministic Messaging: Unlike standard Ethernet cards, the 1784-PCICS strictly enforces the ControlNet NUT (Network Update Time). This guarantees that critical interlocks and high-speed motion data arrive exactly when the application expects them, eliminating unpredictable network collisions.

FAQs

• Is this 1784-PCICS card a brand new unit?

  Yes. We supply only 100% Brand New units in original Allen Bradley anti-static packaging. This ensures the onboard electrolytic capacitors and BNC connectors possess their full service life, which is critical for discontinued PCI hardware.

• Does the card support both Scanner and Messaging modes simultaneously?

  Yes. The 1784-PCICS provides full scanner capability to control remote I/O racks while simultaneously managing unscheduled messaging (explicit messaging) for HMI data or PLC-to-PC uploads.

• What software do I need to configure this card?

  You typically use RSNetWorx for ControlNet to schedule the network and RSLinx Classic to establish the driver communication between the card and your industrial application (such as SoftLogix or an HMI).

• Can I install this in a modern PCIe (PCI Express) slot?

  No. The 1784-PCICS requires a standard legacy PCI slot. If your industrial computer only provides PCIe slots, you would require a PCI-to-PCIe bridge or a newer communication module. Always verify your motherboard's slot architecture before installation.