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YOKOGAWA UR1EG3-100N-6KD-2TB-N
Product Introduction:
The UR1EG3-100N-6KD-2TB-N is a programmable remote I/O main unit from Yokogawa’s UR1 (Unified Remote I/O) series, part of the FA-M3 automation platform. It serves as a distributed I/O controller that aggregates field signals from remote locations and communicates with the central PLC/DCS over EtherNet/IP, Modbus TCP, or CC-Link networks. The configuration specifies: 100-point I/O capacity, 6 channels of analog input (KD), 2 terminal blocks (TB), no cover (N).
Detailed content
Measurement Principle:
The UR1 main unit contains a high-speed backplane bus that connects to I/O modules (analog input, analog output, digital input, digital output, communication modules). Each I/O module performs A/D or D/A conversion locally, and the main unit handles protocol conversion and network communication to the host controller. The system uses cycle-based or event-driven data exchange with the central controller.
Technical Specifications:
| Parameter | Specification |
|---|---|
| Model | UR1EG3-100N-6KD-2TB-N |
| Main Unit | UR1EG3 |
| I/O Capacity | 100 Points (100N) |
| Analog Input Modules | 6 Channels (6KD) — 4–20 mA DC / 1–5 V DC input |
| Terminal Blocks | 2 (2TB) |
| Cover | None (N) |
| Backplane Bus | High-speed serial backplane (10 Mbps) |
| Communication Protocols | EtherNet/IP, Modbus TCP, CC-Link IE Field |
| Ethernet Ports | 2 ports (RJ45, 10/100 BASE-TX) |
| Power Supply | 24 V DC (redundant input capable) |
| Power Consumption | ≤ 15 W (typical, without I/O modules) |
| Operating Temperature | 0°C to +55°C (32°F to +131°F) |
| Protection Class | IP20 (open frame, requires enclosure) |
| Dimensions (Main Unit) | Approx. 150 × 90 × 75 mm (W × H × D) |
| Mounting | DIN Rail (35 mm) or Panel Mount |
| Approvals | CE, UL, CSA, TÜV |
Structural Features:
- Open-frame main unit — requires installation in a control cabinet (N = no cover)
- Modular architecture — I/O modules plug into the backplane bus
- 2 Ethernet ports — supports daisy-chain or star topology
- LED status indicators — power, communication, fault per module slot
- Screw-terminal blocks (2TB) — for field wiring connections
- Redundant power input capability — supports dual 24 V DC feeds
Performance Parameters:
| Parameter | Value |
|---|---|
| Analog Input Resolution | 16-bit A/D converter |
| Analog Input Accuracy | ±0.1% of span (typical) |
| Scan Cycle (100 points) | ≤ 10 ms (typical) |
| Maximum I/O Modules | Up to 16 modules per main unit |
| Digital Input | 24 V DC, sink/source selectable |
| Digital Output | 24 V DC, transistor output, 0.5 A per point |
| Isolation | 1500 V AC (channel to channel, channel to bus) |
| MTBF | ≥ 200,000 hours (at 25°C) |
| Configuration Software | FA-M3 System Configuration Tool (Windows-based) |
Key Advantages:
- Unified platform — supports EtherNet/IP, Modbus TCP, and CC-Link on a single device
- 100-point capacity in a compact form factor — reduces cabinet space
- High-speed backplane bus (10 Mbps) — fast cycle times for real-time control
- Modular and scalable — add or remove I/O modules without replacing the main unit
- Open-frame design (N) — lower cost, easy to wire in custom panels
- Dual Ethernet ports — supports network redundancy (MRP protocol)
Applicable Industries:
- Oil and Gas (Upstream/Downstream)
- Chemical and Petrochemical Processing
- Power Generation and Distribution
- Water and Wastewater Treatment
- Manufacturing (Automotive, Electronics)
- Mining and Mineral Processing
- Pharmaceutical and Life Sciences
Installation Requirements:
- Install in a control cabinet with adequate ventilation — minimum 100 mm clearance above and below
- Mount on 35 mm DIN rail — secure with locking clips
- Connect 24 V DC power to both terminals for redundant operation (if required)
- Wire all field signals to the terminal blocks (TB) — use shielded cable for analog signals
- Connect Ethernet cables to both ports if using daisy-chain topology
- Ground the cabinet and all shields to the plant ground bus
- Configure the IP address and communication protocol using the FA-M3 System Configuration Tool before commissioning
Usage Precautions:
- Do not insert or remove I/O modules with power on — this can damage the backplane bus
- Verify the I/O module type matches the slot assignment — incorrect modules will not be recognized
- Do not exceed 100 total I/O points — the main unit will not address additional points
- Use shielded twisted-pair cable for all analog signals — ground at one end only
- Do not expose to temperatures above +55°C or below 0°C
- Back up the configuration to a PC or SD card before making any changes
- Do not block the ventilation openings on the top and bottom of the main unit
