Product Overview

The Eaton EASY-E4-UC-12RC1 acts as the central intelligence for localized automation, effectively bridging the gap between traditional relays and complex PLCs. This ultra-compact control relay empowers engineers to implement sophisticated logic across a broad voltage spectrum, supporting 12/24 V DC and 24 V AC power environments. Featuring an integrated monochrome display and an on-board Ethernet interface, the easyE4 enables real-time status monitoring and seamless vertical integration into IIoT frameworks. Unlike basic logic modules, this device facilitates high-speed data transfer and networking via Modbus TCP, allowing for coordinated control between multiple easyE4 units or upstream SCADA systems. With 8 digital inputs—4 of which function as high-precision 12-bit analog inputs—and 4 robust relay outputs, it provides the versatile I/O density required for lighting, HVAC, and specialized machine control.

Core Technical Advantages

Multi-Protocol Network Integration

The integrated RJ45 Ethernet port transforms the easyE4 from a standalone controller into a networked node. It supports Modbus TCP client/server roles, allowing the unit to exchange data with HMI panels, frequency drives, and other PLC brands. The built-in web server enables remote diagnostic access through standard web browsers, reducing onsite maintenance requirements.

Hybrid Input Flexibility

This hardware architecture optimizes I/O usage by providing four multi-functional inputs. Users configure these terminals as standard 24V digital signals or as 0-10V analog channels with 12-bit resolution. This eliminates the need for separate analog expansion modules in small-scale applications such as pressure monitoring or temperature regulation.

Expandable Modular Architecture

The EASY-E4-UC-12RC1 operates as a master unit that accepts up to 11 additional I/O expansion modules via the EASY-E4-CONNECT1 connector. This allows the system to scale up to 188 I/O points, protecting your initial hardware investment as project requirements grow.

Technical Specifications

Engineering Installation Guide

Ethernet Connectivity and Shielding

When utilizing the Ethernet port for industrial communication, we recommend using CAT5e or higher shielded cables. For high-speed counter functions (up to 10 kHz), keep signal wiring below 20 meters and utilize screened cables to prevent electromagnetic interference from surrounding power lines.

Power Supply and Fusing

Ensure the power supply remains within the permissible range of 10.2 - 28.8 V DC or 20.4 - 26.4 V AC. To protect the internal relay contacts from high inrush currents or short circuits, install a B16 miniature circuit breaker or a slow-blow 8A fuse on the output lines.

Mounting and Heat Dissipation

Secure the unit to a standard 35mm DIN rail using the integrated mounting clips. While the device supports both vertical and horizontal mounting, vertical orientation facilitates natural convection. Maintain at least 10mm of clearance from adjacent high-heat components to ensure the LCD remains clearly legible.

Engineering Advantages

The EASY-E4-UC-12RC1 excels in environments where reliability and small-scale complexity intersect. Its high mechanical shock resistance (15g/11ms) ensures stable operation in mobile machinery and vibratory conveyor systems. The unit’s ability to handle three different supply voltages (12VDC, 24VDC, 24VAC) makes it a universal replacement part for diverse global fleets, significantly reducing spare part inventory. By utilizing the EasySoft 7 software environment, engineers choose between four programming languages—including ST (Structured Text) and EDP—providing the flexibility to implement advanced math functions or simple ladder logic within the same industrial-grade housing.

Delivery & Logistics

Delivery Time: 3-5 days once payment is finalized.

Shipping Carriers: Shipped globally via DHL, FEDEX, or UPS. We utilize static-shielded, impact-resistant packaging to protect the internal Ethernet circuitry and LCD display during international transit.

Technical FAQs

Q1: Can I use the analog inputs when the unit is powered by 24V AC?

A1: No. Analog input functionality (0-10V) is only available when the device is supplied with 12V DC or 24V DC. For AC-powered applications requiring analog sensing, an expansion module is required.

Q2: How many expansion modules can I connect to this basic EASY-E4 unit?

A2: You can connect up to 11 expansion modules to a single EASY-E4-UC-12RC1 basic device, allowing for a mix of digital, analog, and temperature measurement expansions.

Q3: Is the Ethernet port compatible with PROFINET?

A3: The easyE4 natively supports Modbus TCP and Ethernet/IP via specific configurations. While it does not support the PROFINET protocol directly, it communicates with PROFINET environments through a gateway or by using Modbus TCP data exchange.

Q4: What happens to the program if the power fails?

A4: The easyE4 stores the user program in non-volatile memory. The real-time clock is maintained by an internal high-capacity capacitor, providing typical backup for several hours without a battery.