Product Overview

The IC695NIU001 serves as the intelligent controller for the PACSystems RX3i Ethernet Network Interface Unit (NIU) station. It allows a central RX3i CPU to manage distributed I/O racks over an Ethernet network, bridging modern PAC architectures with legacy Series 90-30 I/O modules. This remote node facilitates high-speed data exchange and decentralized control without needing a full CPU in every rack. We guarantee this unit is 100% brand new, ensuring optimal network stability.

Technical Specifications

Engineering Advantages

• Distributed I/O Scalability:
  The IC695NIU001 allows I/O racks to be placed closer to field devices, reducing long-distance wiring costs and simplifying programming. Remote I/O is treated as local data points within the main RX3i CPU.

• Legacy Hardware Integration:
  Enables migration from older systems by allowing RX3i controllers to communicate directly with Series 90-30 I/O modules, preserving your existing hardware investment while upgrading core processing.

• Localized Logic Capability:
  With 20KB of optional local logic, the NIU can handle basic control tasks independently of the main CPU, ensuring safe-state conditions even if the network connection is lost.

• Flexible Serial Connectivity:
  Dual COM ports support protocols like Modbus RTU, enabling the NIU to serve as a gateway for serial devices, such as power meters or barcode scanners, transmitting data back to the main controller.

• Robust Battery Backup Options:
  Supports various battery types (including the IC695ACC302 Lithium Smart Battery) to preserve the internal clock and volatile data during power loss or maintenance.

FAQs

What components are required for a complete NIU station?

You need the IC695NIU001 module, an RX3i universal backplane, a compatible power supply, and at least one RX3i Ethernet module (e.g., IC695ETM001).

Which software version do I need to configure this module?

Use Machine Edition Logic Developer software, version 5.51 or later, to map remote I/O points to the main CPU’s memory.

Can the IC695NIU001 firmware be updated?

Yes, the firmware can be upgraded via the RX3i system, enabling deployment of security patches and protocol enhancements without hardware replacement.

What is the difference between the IC695NTK001 and NTK002 kits?

These are pre-configured bundles that simplify ordering. They typically include the NIU module, backplane, and power supply. Check catalog listings for slot count and power requirements.