Product Introduction
The GE IC695NIU001 Ethernet Network Interface Unit (ENIU) is a critical component for bridging PACSystems RX3i CPUs with legacy Series 90-30 I/O modules. Manufactured by Emerson Automation (formerly GE Intelligent Platforms), this module provides seamless data exchange over Ethernet. It features dual RS-232/RS-485 ports, 10 MB flash memory, and upgradeable firmware. For industries upgrading from older systems, the IC695NIU001 offers a cost-effective path to modernize without discarding existing I/O investments.
Key Specifications
Below are the essential technical parameters of the GE IC695NIU001, derived directly from the product's datasheet:
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Communication Ports: Two ports configurable for RS-232 and RS-485
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Serial Protocols Supported: Modbus RTU Slave, SNP, Serial I/O, Modbus RTU Master (via application 'C' block)
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Integrated Memory: 10 MB flash for user data and firmware storage
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Power Requirements: +3.3 VDC at 1.25 A nominal, +5 VDC at 1.0 A nominal
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Operating Temperature: 0°C to 60°C (32°F to 140°F)
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Backplane Support: Dual – RX3i PCI and 90-30 serial
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Battery: Lithium Smart Battery (IC695ACC302 recommended) or alternatives
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Optional Local Logic: 20 KB capacity
Industry Applications
The IC695NIU001 is ideal for upgrading manufacturing lines where older Series 90-30 I/O racks must interoperate with modern RX3i controllers. For example, in automotive assembly plants, this module allows legacy sensor arrays to communicate with newer PLCs without re-cabling. In water treatment facilities, the IC695NIU001 enables remote I/O over Ethernet, reducing wiring costs. Similarly, in packaging systems, it supports high-speed data exchange using Ethernet Global Data (EGD).
Compatibility & Integration
This module integrates with the RX3i universal backplane and requires a power supply and an Ethernet interface module (IC695ETM001). It supports PCI 2.2 compliance and works with Machine Edition Logic Developer software v5.51+. The IC695NIU001 communicates via SRTP for TCP/IP services and uses EGD for deterministic data exchange. It also supports redundant controller configurations, enhancing system reliability.
Maintenance & Reliability
The IC695NIU001 includes a battery-backed real-time clock; replace the lithium smart battery every 5 years under normal conditions. Keep the module’s firmware updated using the in-system upgrade feature to ensure compatibility and security. Operate within the specified temperature range to avoid thermal stress. Periodic inspection of the RS-232/RS-485 ports for corrosion or damage is recommended.
Selection Guide & Purchasing Advice
Before purchasing the GE IC695NIU001, verify your backplane type (RX3i PCI or 90-30 serial). Ensure you have the necessary power supply and Ethernet interface module. For complete assembly, consider NIU kits IC695NTK001 or IC695NTK002. UBEST Automation offers this module with genuine parts and fast shipping. Contact us for technical support or bulk pricing.