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Phone: +86 16626708626Description
Product Model: IC695NIU001-AH
Product Brand: GE Fanuc / Emerson PACSystems
Product Series: RX3i Ethernet Network Interface Unit (NIU)
Product Features:
- Single-slot Ethernet NIU that bridges RX3i and Series 90-30 I/O via Ethernet
- Two onboard serial ports (RS-232 & RS-485) for SNP, Modbus, Serial I/O
- 10 MB flash memory, optional 20 kB local logic support
- Battery-backed real-time clock, firmware upgradeable
| Specification | Value / Range / Description |
|---|---|
| Module Type | Ethernet Network Interface Unit (NIU) |
| Slot Requirement | 1 slot in RX3i universal backplane |
| Backplane Support | RX3i PCI style and Series 90-30 serial style |
| Communication Ports | 1 × RS-232, 1 × RS-485 |
| Supported Protocols | SNP, Serial I/O, Modbus RTU (slave/master) |
| Flash Memory | 10 MB (firmware / user data) |
| Local Logic Option | 20 kB (optional in some revisions) |
| Power Draw | 0.52 A @ 3.3 V, 0.95 A @ 5.0 V |
| Operating Temperature | 0 °C to 60 °C |
| Battery / Real-Time Clock | Battery-backed RTC; replaceable |
| Firmware Upgrade | Supported via configuration tools |
| Ethernet Dependency | Requires Ethernet interface module (IC695ETM001) in the NIU station |
| Redundancy Capability | Supports redundant controller operation |
| LED / Diagnostics | Status indicators, fault flags, serial port activity |
- IC695NIU001-AH
- IC695NIU001-AH
Product Role & System Fit
The IC695NIU001-AH is not a CPU; it is a Network Interface Unit (NIU). It occupies one slot in an RX3i universal backplane and ties into a larger NIU station architecture. That station typically includes a backplane, power supply, the NIU itself, and associated Ethernet interface modules (e.g. IC695ETM001). The NIU translates Ethernet data traffic into local I/O addressable space, and vice versa.
Because the NIU supports dual backplane buses (RX3i PCI style and 90-30 serial backplane style), it enables mixed module populations on the same station—ideal when retrofitting or co-locating old 90-30 modules with newer RX3i logic.
Within a control architecture, you’ll often use the IC695NIU001-AH in a remote I/O rack that plugs into Ethernet rather than a local CPU. The master CPU or controller communicates over EGD (Ethernet Global Data) to consume or produce data to that remote NIU. Because it also has serial ports, you can integrate devices or modules that only support serial wiring in that same station.
In hybrid networks, the IC695NIU001-AH effectively becomes the local field I/O front end, offering a transparent interface to the higher-level logic. It fits best when you want to distribute I/O, isolate network boundaries, or consolidate scattered remote racks without redoing entire cable runs.
