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EPS-2308

8-CH Relay Output EtherCAT Module
  • Manufacturer not specified
  • Category: Modules
  • The ADLINK EPS‑2308 is a compact, high‑isolation, 8‑channel SPST relay output module designed for EtherCAT‑based distributed control systems. It is part of ADLINK’s modular EPS Series, which provides flexible, hot‑swappable slave modules for industrial automation, process control, and smart factory applications. The EPS‑2308 integrates seamlessly with the EPS‑9905 chassis and EPS‑6000 EtherCAT bus coupler, offering reliable relay switching for AC and DC loads under harsh industrial conditions.
- 8‑Channel Relay Output: Provides eight independent SPST (Single Pole Single Throw) relay outputs for flexible control of external devices.
- High Isolation Protection: 2 kV DC isolation between channels, chassis, and ground ensures electrical safety and noise immunity.
- Wide Operating Temperature Range: Fully functional from –20 °C to +60 °C, suitable for industrial environments.
- Compact Form Factor: 100 mm (L) × 100 mm (H) module size allows dense installation in EPS chassis.
- Hot‑Swappable Design: Modules can be replaced without powering down the system, minimizing downtime.
- Quick‑Removable Connector: Equipped with a Weidmüller OMNIMATE Signal BL/SL 5.08 mm connector for easy wiring and maintenance.
- Relay Lifecycle Monitoring: Integrated self‑diagnostic functions monitor relay health and module status.
- IEC 61131 Compliance: Conforms to international industrial control standards for interoperability and reliability.
- Slave Module Health Monitoring: Continuous status reporting via EtherCAT communication.
- Self‑Diagnostics: Monitors power, communication, and watchdog timer (WDT) conditions.
- LinkMasterPro™ Compatibility: Fully supported by ADLINK’s EtherCAT configuration utility for automatic ESI file generation and system configuration.
- Environmental Robustness: Designed for vibration, shock, and EMC compliance per EN 60068‑2 and EN 61000‑6 standards.

Country of origin: Taiwan R.O.C.

Comprehensive Product Summary – ADLINK EPS‑2308 8‑Channel Relay Output EtherCAT Module




### 1. Product Overview

Product Name: EPS‑2308
Model: EPS‑2308
Series: ADLINK EPS Series EtherCAT Slave System
Article Number: EPS‑2308
Manufacturer: ADLINK Technology, Inc.
Product Type: 8‑Channel (8‑CH) Relay Output EtherCAT Module
Product Category: Industrial I/O Expansion Module for EtherCAT Systems
Revision: Quick Start Guide Rev. 2.00 (April 30, 2015)
Part Number: 50‑40290‑5000

The ADLINK EPS‑2308 is a compact, high‑isolation, 8‑channel SPST relay output module designed for EtherCAT‑based distributed control systems. It is part of ADLINK’s modular EPS Series, which provides flexible, hot‑swappable slave modules for industrial automation, process control, and smart factory applications. The EPS‑2308 integrates seamlessly with the EPS‑9905 chassis and EPS‑6000 EtherCAT bus coupler, offering reliable relay switching for AC and DC loads under harsh industrial conditions.




### 2. Key Features

- 8‑Channel Relay Output: Provides eight independent SPST (Single Pole Single Throw) relay outputs for flexible control of external devices.
- High Isolation Protection: 2 kV DC isolation between channels, chassis, and ground ensures electrical safety and noise immunity.
- Wide Operating Temperature Range: Fully functional from –20 °C to +60 °C, suitable for industrial environments.
- Compact Form Factor: 100 mm (L) × 100 mm (H) module size allows dense installation in EPS chassis.
- Hot‑Swappable Design: Modules can be replaced without powering down the system, minimizing downtime.
- Quick‑Removable Connector: Equipped with a Weidmüller OMNIMATE Signal BL/SL 5.08 mm connector for easy wiring and maintenance.
- Relay Lifecycle Monitoring: Integrated self‑diagnostic functions monitor relay health and module status.
- IEC 61131 Compliance: Conforms to international industrial control standards for interoperability and reliability.
- Slave Module Health Monitoring: Continuous status reporting via EtherCAT communication.
- Self‑Diagnostics: Monitors power, communication, and watchdog timer (WDT) conditions.
- LinkMasterPro™ Compatibility: Fully supported by ADLINK’s EtherCAT configuration utility for automatic ESI file generation and system configuration.
- Environmental Robustness: Designed for vibration, shock, and EMC compliance per EN 60068‑2 and EN 61000‑6 standards.




### 3. Technical Specifications

| Parameter | Specification |
|----------------|------------------|
| Channels | 8 relay output channels |
| Relay Type | SPST (Single Pole Single Throw) |
| Contact Rating | DC 30 V @ 2 A; AC 125 V @ 0.5 A; AC 240 V @ 0.5 A |
| Output Impedance (Rout) | 50 mΩ (typical) |
| Response Time | Operate: 10 ms; Release: 5 ms (typical) |
| Power Consumption | < 600 mW (from chassis) |
| Thermal Dissipation | < 2.55 W @ EVCC = 24 V + 10 % |
| Isolation (Channel‑to‑DGND) | 2 kV DC for 1 minute |
| Isolation (Channel‑to‑Chassis) | 2 kV DC for 1 minute |
| Isolation (Channel‑to‑Channel) | 250 Vrms for 1 minute (adjacent relay or pin) |
| Operating Temperature | –20 °C to +60 °C |
| Storage Temperature | –40 °C to +85 °C |
| Dimensions | 100 mm (L) × 100 mm (H) |
| Connector Type | Weidmüller OMNIMATE Signal BL/SL 5.08 mm, 1×16 pin |
| Wire Gauge | AWG 12–26 |
| Mounting | DIN‑rail via EPS‑9905 chassis |
| Compliance | IEC 61131, EN 60068‑2, EN 61000‑6, CE/FCC Class A |
| Hot Swap Support | Yes |
| Self‑Diagnostics | Power, Communication, Watchdog Timer |
| Weight | Approx. < 200 g (module only) |




### 4. Functionality

The EPS‑2308 functions as a relay output expansion module within the ADLINK EPS EtherCAT slave system. It interfaces with the EtherCAT network through the EPS‑6000 bus coupler and communicates with the EtherCAT master controller (e.g., ADLINK Talos or third‑party masters).

Each of the eight SPST relay channels can independently switch AC or DC loads, enabling control of actuators, solenoids, contactors, or indicator lamps. The relays are controlled via EtherCAT process data objects (PDOs) and can be toggled through the master’s control software or ADLINK’s LinkMasterPro™ utility.

Typical Use Cases:
- Industrial automation and process control
- Machine tool and equipment control
- Building automation and HVAC systems
- Power distribution and load switching
- Safety interlock and alarm signaling
- Remote I/O expansion for PLCs and motion controllers

Compatibility:
- Fully compatible with ADLINK EPS‑9905 chassis and EPS‑6000 EtherCAT bus coupler
- Operates with ADLINK Talos EtherCAT master controllers and any certified third‑party EtherCAT master supporting ESI import
- Integrates with CoDeSys IEC 61131‑3 development environments via generated ESI XML files




### 5. Components & Accessories

Included Items:
- EPS‑2308 relay output module
- Quick Start Guide (Rev. 2.00)
- Weidmüller OMNIMATE 16‑pin connector (pre‑installed)

Optional Accessories:
- EPS‑9905 chassis (required for operation)
- EPS‑6000 EtherCAT bus coupler module
- DIN‑rail mounting kit (included with chassis)
- Phoenix Contact or Weidmüller compatible replacement connectors
- ADLINK LinkMasterPro™ configuration software (Windows utility)

Connector Pin Assignments:

| Pin | Signal | Description |
|----------|------------|----------------|
| 1 | RO0a | Relay Output Channel 0 – Contact A |
| 2 | RO0b | Relay Output Channel 0 – Contact B |
| 3 | RO1a | Relay Output Channel 1 – Contact A |
| 4 | RO1b | Relay Output Channel 1 – Contact B |
| 5 | RO2a | Relay Output Channel 2 – Contact A |
| 6 | RO2b | Relay Output Channel 2 – Contact B |
| 7 | RO3a | Relay Output Channel 3 – Contact A |
| 8 | RO3b | Relay Output Channel 3 – Contact B |
| 9 | RO4a | Relay Output Channel 4 – Contact A |
| 10 | RO4b | Relay Output Channel 4 – Contact B |
| 11 | RO5a | Relay Output Channel 5 – Contact A |
| 12 | RO5b | Relay Output Channel 5 – Contact B |
| 13 | RO6a | Relay Output Channel 6 – Contact A |
| 14 | RO6b | Relay Output Channel 6 – Contact B |
| 15 | RO7a | Relay Output Channel 7 – Contact A |
| 16 | RO7b | Relay Output Channel 7 – Contact B |




### 6. Installation & Setup

System Requirements:
- EPS‑9905 chassis with available peripheral slot (Slots 1–4)
- EPS‑6000 EtherCAT bus coupler installed in the leftmost slot
- 24 V DC power supply (± 10 %)
- EtherCAT master controller and CAT5/CAT5e cabling

Installation Procedure:
1. Ensure the EPS‑9905 chassis and EPS‑6000 bus coupler are powered off.
2. Align the EPS‑2308 module with the guide rails of an available slot.
3. Slide the module firmly into place until fully seated.
4. Tighten the front‑panel thumbscrews to secure the module.
5. Connect field wiring to the 16‑pin Weidmüller connector according to the pinout.
6. Power up the EPS system.
7. Launch LinkMasterPro™ to detect the module and generate the corresponding ESI (EtherCAT Slave Information) XML file.
8. Import the ESI file into the EtherCAT master configuration software (e.g., CoDeSys).

Mounting Options:
- DIN‑rail mounting via EPS‑9905 chassis
- Maintain at least 5 cm clearance above and 2.5 cm on each side for heat dissipation

Configuration:
- Use LinkMasterPro™ to scan the EtherCAT network, identify the EPS‑2308, and export the ESI file.
- The module’s object dictionary (Index 0x4000) defines 8 bits for relay control (bits 0–7 correspond to RO0–RO7).




### 7. Performance & Capabilities

Switching Performance:
- Supports both AC and DC load switching up to 240 V AC @ 0.5 A or 30 V DC @ 2 A per channel.
- Typical operate time: 10 ms; release time: 5 ms.
- Contact resistance: ≤ 50 mΩ (typical).
- Mechanical endurance: > 10⁷ operations (typical).

Electrical Performance:
- Power consumption below 600 mW ensures low thermal load.
- Thermal dissipation under 2.55 W at 24 V operation.
- High dielectric strength (2 kV DC isolation) prevents cross‑channel interference.

Efficiency & Reliability:
- Hot‑swappable design minimizes mean time to repair (MTTR).
- Relay lifecycle monitoring and self‑diagnostics enhance predictive maintenance.
- Operates reliably in industrial temperature and EMC environments.

Limitations:
- Not intended for high‑frequency switching or inductive loads without suppression.
- Maximum current limited to 2 A DC or 0.5 A AC per channel.
- Adjacent channel isolation limited to 250 Vrms.




### 8. Standards & Compliance

Electrical & Safety Standards:
- IEC 61131‑2: Programmable controller I/O standard compliance
- EN 60068‑2: Shock and vibration resistance
- EN 61000‑6: Heavy industrial EMC immunity and emission compliance
- CE / FCC Class A: Electromagnetic compatibility certification
- UL / CB Safety: Meets industrial safety requirements

Environmental Compliance:
- RoHS Directive: Restriction of Hazardous Substances compliant
- WEEE Directive: Waste Electrical and Electronic Equipment compliant
- Operating Environment: –20 °C to +60 °C, non‑condensing humidity
- Storage Environment: –40 °C to +85 °C

EtherCAT Protocol Support:
- CoE (CAN Application Protocol over EtherCAT)
- FoE (File Access over EtherCAT)
- Distributed Clock (DC) Synchronization: ± 0.1 µs accuracy via EPS‑6000

Software Integration:
- LinkMasterPro™ Utility: Automatic detection, ESI generation, and EEPROM update
- CoDeSys IEC 61131‑3: Compatible for PLC programming and EtherCAT configuration




### 9. Additional Information

Warranty & Support:
- Standard ADLINK limited warranty (typically 2 years; refer to regional policy)
- Global technical support via ADLINK service centers and authorized partners
- Firmware updates and ESI files available through ADLINK’s website

Maintenance:
- Periodic inspection of relay contacts recommended for high‑load applications
- Clean connectors and terminals with non‑conductive contact cleaner
- Replace module if relay wear or contact degradation is detected

Software & Firmware Updates:
- Firmware can be updated via File Over EtherCAT (FoE) using LinkMasterPro™
- ESI files automatically generated and stored in XML format for master import

Safety Precautions:
- Disconnect power before wiring or removing the module
- Observe correct polarity and voltage ratings
- Avoid exposure to moisture, vibration, or corrosive environments
- Only qualified personnel should perform installation and maintenance

Manufacturer Contact Information:

ADLINK Technology, Inc.
9F, No. 166 Jian Yi Road, Zhonghe District, New Taipei City 235, Taiwan
Tel: +886‑2‑8226‑5877 Fax: +886‑2‑8226‑3337
Email: service@adlinktech.com Web: [www.adlinktech.com](http://www.adlinktech.com)

Regional Offices:
- USA: Ampro ADLINK Technology, Inc., San Jose, CA 95138
- Europe: LiPPERT ADLINK Technology GmbH, Mannheim, Germany
- China: ADLINK Technology (Shanghai, Beijing, Shenzhen)
- Japan: ADLINK Technology Japan Corporation, Tokyo
- Korea, Singapore, India, Israel, UK: Local liaison offices available

Environmental Responsibility:
ADLINK enforces RoHS and WEEE compliance, ensuring minimal environmental impact during manufacturing and end‑of‑life disposal. Customers are encouraged to recycle or dispose of products according to local regulations.




### Summary

The ADLINK EPS‑2308 is a robust, industrial‑grade 8‑channel relay output module engineered for EtherCAT‑based distributed I/O systems. It combines high electrical isolation, wide temperature tolerance, and hot‑swappable modularity within a compact 100 × 100 mm footprint. Designed for seamless integration with the EPS‑9905 chassis and EPS‑6000 bus coupler, it provides reliable switching of AC/DC loads under demanding industrial conditions.

With IEC 61131 compliance, LinkMasterPro™ configuration support, and comprehensive self‑diagnostics, the EPS‑2308 delivers dependable performance for automation, process control, and smart manufacturing applications. Its combination of durability, modularity, and EtherCAT interoperability makes it a key component in ADLINK’s scalable EPS Series for next‑generation industrial control systems.

No accessories available.