Comprehensive Product Summary – ADLINK EPS‑3216 16‑Channel 0–20 mA Analog Input EtherCAT Module

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### 1. Product Overview

Product Name: 16‑Channel 0–20 mA Analog Input EtherCAT Module
Model: EPS‑3216
Series: ADLINK EPS Series EtherCAT Slave System
Article Number: EPS‑3216
Manufacturer: ADLINK Technology, Inc.
Part Number: 50‑40292‑5000
Manual Revision: 2.00 (August 2, 2015)
Product Category: EtherCAT Analog Input Module

The ADLINK EPS‑3216 is a high‑density, 16‑channel analog input module designed for EtherCAT‑based distributed control systems. It is part of ADLINK’s modular EPS Series, which provides a complete EtherCAT slave system architecture supporting digital, analog, relay, thermal, and motion I/O modules. The EPS‑3216 specifically handles differential 0–20 mA current‑loop signals with 16‑bit resolution, offering precise current measurement for industrial automation, process control, and data acquisition applications.

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### 2. Key Features

- 16‑Channel 0–20 mA Differential Analog Input: Supports 16 single‑ended or differential current input channels for high‑density signal acquisition.
- High Sampling Rate: 100 kS/s per channel ensures accurate and fast data capture for dynamic process monitoring.
- 16‑Bit Resolution: Provides fine granularity and precision in current measurement.
- Wide Operating Temperature Range: Fully functional from –20 °C to +60 °C, suitable for harsh industrial environments.
- Hot‑Swappable Design: Modules can be replaced without powering down the system, minimizing downtime.
- Self‑Diagnostic Functions: Monitors power, communication, and watchdog timer (WDT) status for system reliability.
- Quick‑Removable European‑Type Connector: Phoenix Contact DFMC series connector allows easy wiring and maintenance.
- Compact Form Factor: 100 mm (L) × 100 mm (H) module size optimizes panel space.
- IEC 61131 Compliance: Meets international standards for programmable controller I/O modules.
- High Isolation Protection: 2 kV DC isolation between channels, chassis, and ground ensures signal integrity and safety.
- Slave Module Health Monitoring: Continuous status feedback through EtherCAT communication.
- Integration with LinkMasterPro™: ADLINK’s Windows‑based EtherCAT configuration utility automatically detects modules and generates ESI (EtherCAT Slave Information) files.

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### 3. Technical Specifications

| Parameter | Specification |
|----------------|------------------|
| Analog Input Channels | 16 single‑ended (differential type) |
| Input Range | 0 – 20 mA |
| Resolution | 16 bit |
| Sampling Rate | 100 kHz |
| Offset Error | 0.5 µA |
| Offset Drift | 0.0005 % of range per °C |
| Gain Error | ± 0.05 % of FSR |
| Gain Drift | 0.0008 % FSR per °C |
| Voltage Protection | Power‑on @ ± 24 V |
| Power Consumption (from chassis) | < 450 mW (max.) |
| Thermal Dissipation (at max temp.) | < 2.55 W (max.) @ EVCC = 24 V + 10 % |
| Operating Temperature | –20 °C to +60 °C |
| Storage Temperature | –40 °C to +85 °C |
| Isolation (Channel‑to‑DGND) | 2 kV DC |
| Isolation (Channel‑to‑Chassis) | 2 kV DC |
| Dimensions | 100 mm (L) × 100 mm (H) |
| Connector Type | Phoenix Contact DFMC series (1787195), 3.5 mm pitch, 2 × 20 pin |
| Wire Gauge | AWG 16 – 24 |
| Hot Swap Support | Yes |
| Compliance | IEC 61131‑2, EN 60068‑2, EN 61000‑6 |
| Weight | Approx. < 200 g (module only) |

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### 4. Functionality

The EPS‑3216 functions as an EtherCAT slave module that converts analog current signals (0–20 mA) from field sensors into digital data for transmission to an EtherCAT master controller. Each channel operates independently, supporting differential measurement to minimize noise and interference. The module’s 16‑bit ADC ensures high‑precision conversion, while the 100 kS/s sampling rate allows real‑time monitoring of rapidly changing signals.

Typical Use Cases:
- Industrial process control and monitoring
- Factory automation and machine instrumentation
- Current‑loop sensor acquisition (pressure, flow, temperature transmitters)
- Distributed I/O systems in EtherCAT networks
- Data logging and condition monitoring

Compatibility:
- Fully compatible with ADLINK’s EPS‑6000 EtherCAT Bus Coupler and EPS‑9905 chassis.
- Operates with ADLINK’s Talos EtherCAT master controllers or any third‑party EtherCAT master supporting standard ESI files.
- Configurable via LinkMasterPro™ software for automatic detection and ESI generation.

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### 5. Components & Accessories

Included Items:
- EPS‑3216 module
- Quick Start Guide (Rev. 2.00)
- Phoenix Contact DFMC connector (2 × 20 pin)
- Mounting screws

Optional Accessories:
- EPS‑9905 chassis (DIN‑rail mount)
- EPS‑6000 EtherCAT bus coupler module
- External 24 V DC power supply
- LinkMasterPro™ configuration software (Windows utility)

Connectors:
- Type: Phoenix Contact DFMC series 1787195
- Pitch: 3.5 mm
- Pin Count: 40 (2 × 20)
- Wire Gauge: AWG 16–24

Pin Assignment (Summary):
- AI00 – AI15: Analog input channels 0–15
- AGND: Analog ground (pins 10, 30, 39, 40)
- RSV: Reserved (pin 20)
- N/C: No connection (various pins)

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### 6. Installation & Setup

System Requirements:
- EPS‑9905 chassis with available peripheral slot
- EPS‑6000 EtherCAT bus coupler installed in slot 1
- 24 V DC (± 10 %) power supply
- EtherCAT master controller (ADLINK Talos or 3rd party)
- LinkMasterPro™ software for configuration

Installation Procedure:
1. Ensure the EPS‑9905 chassis and EPS‑6000 bus coupler are powered off.
2. Align the EPS‑3216 module with the guide rails of an available slot (slots 2–5).
3. Slide the module firmly into place until seated.
4. Secure the front‑panel screws.
5. Connect signal wiring to the Phoenix Contact connector according to pin assignments.
6. Power up the EPS system.
7. Launch LinkMasterPro™ to detect the module and generate the corresponding ESI file.

Mounting Options:
- DIN‑rail mounting via EPS‑9905 chassis
- Rack installation with optional accessories

Configuration:
- Use LinkMasterPro™ to scan the EtherCAT network, identify the EPS‑3216, and export the ESI (XML) file.
- Import the ESI file into the EtherCAT master configuration environment (e.g., CoDeSys).
- Verify channel mapping and calibration parameters.

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### 7. Performance & Capabilities

Measurement Performance:
- Input Range: 0 – 20 mA (current loop)
- Resolution: 16 bit (1 part in 65,536)
- Sampling Rate: 100 kS/s per channel
- Accuracy: ± 0.05 % of Full Scale Range (FSR)
- Offset Error: 0.5 µA typical
- Temperature Drift: < 0.001 % FSR per °C

Electrical Isolation:
- 2 kV DC isolation between channels, chassis, and ground prevents ground loops and ensures reliable operation in noisy environments.

Thermal & Environmental Performance:
- Operates reliably from –20 °C to +60 °C.
- Compliant with EN 60068‑2‑6 (vibration) and EN 60068‑2‑27 (shock).
- Designed for heavy industrial EMC environments (EN 61000‑6).

Efficiency & Reliability:
- Low power consumption (< 450 mW) reduces system heat load.
- Hot‑swappable design minimizes Mean Time To Repair (MTTR).
- Continuous self‑diagnostics monitor module health and communication integrity.

Limitations:
- Input limited to 0–20 mA range; voltage inputs require EPS‑3032 module.
- Not intended for direct thermocouple or RTD measurement (use EPS‑3504 for RTD).

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### 8. Standards & Compliance

Industrial Standards:
- IEC 61131‑2: Programmable controller I/O module compliance.
- EN 60068‑2‑6: Vibration resistance (5 Grms, 5–500 Hz).
- EN 60068‑2‑27: Shock resistance (100 G, 11 ms half‑sine).
- EN 61000‑6: EMC immunity and emission for industrial environments.

Environmental Compliance:
- RoHS: Restriction of Hazardous Substances Directive compliant.
- WEEE: Waste Electrical and Electronic Equipment Directive compliant.
- Operating Temperature: –20 °C to +60 °C.
- Storage Temperature: –40 °C to +85 °C.

Safety & EMC Certifications:
- CE and FCC Class A certified.
- UL and CB safety certifications for industrial use.

EtherCAT Protocol Support:
- CoE (CAN Application Protocol over EtherCAT)
- FoE (File Access over EtherCAT)
- Distributed Clock Synchronization (DC)

Software Integration:
- Compatible with LinkMasterPro™ for ESI generation.
- Supports CoDeSys IEC 61131‑3 development environment.

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### 9. Additional Information

Warranty & Support:
- Standard ADLINK limited warranty (contact regional office for terms).
- Technical support available via service@adlinktech.com.
- Global service centers in Taiwan, USA, China, Japan, Germany, France, Korea, Singapore, India, and Israel.

Maintenance:
- Periodically inspect connectors and wiring for corrosion or looseness.
- Clean module exterior with dry, non‑abrasive cloth.
- Do not open or service internally; return to ADLINK for repair.

Firmware & Updates:
- Firmware can be updated via FOE (File Over EtherCAT) using LinkMasterPro™.
- ESI (XML) files automatically generated and stored in EEPROM.

Disposal & Environmental Responsibility:
- Dispose of end‑of‑life modules in accordance with local WEEE regulations.
- ADLINK enforces environmentally responsible manufacturing and recycling practices.

Safety Precautions:
- Ensure correct polarity and voltage when connecting 24 V DC power.
- Maintain adequate ventilation (≥ 5 cm clearance above and 1 cm on sides).
- Avoid exposure to moisture, corrosive gases, or conductive dust.
- Only qualified personnel should install or service the module.

Manufacturer Contact:
- ADLINK Technology, Inc.
  9F, No. 166 Jian Yi Road, Zhonghe District, New Taipei City 235, Taiwan
  Tel: +886‑2‑8226‑5877 Fax: +886‑2‑8226‑5717
  Email: service@adlinktech.com Web: [www.adlinktech.com](http://www.adlinktech.com)

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### Summary

The ADLINK EPS‑3216 is a robust, high‑precision 16‑channel 0–20 mA analog input module engineered for EtherCAT‑based distributed control systems. It combines 16‑bit resolution, 100 kS/s sampling, and 2 kV isolation in a compact 100 × 100 mm form factor. Designed for industrial automation, process monitoring, and data acquisition, it ensures reliable operation across –20 °C to +60 °C environments. The module’s hot‑swappable capability, self‑diagnostics, and IEC 61131 compliance make it ideal for mission‑critical applications requiring minimal downtime and high measurement accuracy. Integration with LinkMasterPro™ simplifies configuration and ESI file generation, ensuring seamless interoperability with ADLINK Talos and third‑party EtherCAT masters.

In summary, the EPS‑3216 delivers high‑density, high‑accuracy current input acquisition with industrial‑grade reliability, environmental resilience, and full EtherCAT compatibility—an optimal solution for modern smart‑factory and process‑automation systems.