# SDAQ-216/218

Programmable Smart DAQ with 16/8-ch Voltage/Current Input, 16-bit, 250kS/s, 2-ch AO, 4-ch DI/O

![Exterior view of a black ADLINK industrial control unit with multiple ports and connectors (no visible text or symbols on main body)](.sdaq-216-218-20230515/1cc800b566747de47f97f4df270c78fc0870de6a785481f206660ed7b05daf1f.jpg)

# Features

• Standalone Ethernet DAQ enabling edge computing
• RESTful API for periodic machine condition polling
• Supports a C/C#/C++/Python/LabView API for continuous data streaming
• Built-in web console for easy configuration and use as a remote DAQ
• 16-ch 250KS/s voltage input (SDAQ-216)
• 8-ch 250KS/s current input (SDAQ-218)
• Supports iApp deployment for edge data analytics and efficiency at the edge
• Two 1Gb Ethernet ports for daisy chaining to multiple devices
• Supports Modbus RTU Master via RS-485

# Introduction

ADLINK’s SDAQ-216/218 ultra-compact edge DAQ based on ARM Cortex-A9 processors and featuring built-in 16 or 8 channel, 16-bit, analog voltage or current input, can function as a standalone edge device without a host PC and is ideally suited for 24-hour sensor measurement and condition monitoring IIoT applications. Through Gb Ethernet communication, data can be quickly transmitted to a central hub. Dual Ethernet ports enable daisy-chain connections that reduce the cost of network equipment and extend the communication distance.

# Distributed Data Acquisition at the Edge

In order to provide constant remote data acquisition and condition monitoring, a DAQ system composed of an embedded system plus a DAQ card can be deployed at each remote machine site. However, when there are many remote machines spread out geographically, the deployment of DAQ systems at each site becomes prohibitive. The SDAQ-216/218 is a standalone Ethernet DAQ system that is designed specifically to perform the tasks of a DAQ system without requiring the complexity and added cost of an embedded system.

# Data Filtering at the Edge

The signals acquired by sensors are raw data that must be filtered and converted into usable data such as FFT, voltage, or current values. The SDAQ-216/28 standalone DAQ system can be deployed at each field site and perform the task of filtering raw data traditionally done by an embedded system. By converting and transmitting filtered, size-reduced data from the edge to a central hub, network load and processing demands on backend servers are reduced dramatically.

# iApp at the Edge

The SDAQ-216/218 offers flexible support options for custom filtering algorithms written in Python. These valuable and confidential algorithms can be deployed and executed at the device as an iApp through iApp Creator contained in the DAQPilot software package. The SDAQ-216/218 enables the migration of iApp, user-defined filtering algorithms, to the edge in a cost-effective manner.

# Built-in Web Console

The SDAQ-216/218's built-in web console allows configuration via web browser to make it easy to get started with remote data acquisition operation and eliminate the need for application specific programming. Settings for relevant parameters and data types are presented in an intuitive dashboard format. The SDAQ-216/218 makes it quick and easy to set up remote data acquisition operation.

# Software Development Kit

ADLINK provides rich data connectivity to assist users with integrating the SDAQ-216/218 into their system.

• Streaming SDK (with C/C#/C++/Python/LabView sample code)
• RESTful API

# Management Utility

ADLINK provides a powerful utility for users to manage devices, create iApps, and deploy them to devices for edge data analytics. For more information, refer to the DAQPilot software package.

# Ordering Information

• SDAQ-216

Programmable Smart DAQ with 16-ch Voltage input, 16-bit, 256kS/s, 4-ch DI/O, 2-ch AO

• SDAQ-218

Programmable Smart DAQ with 8-ch Current input, 16-bit, 256kS/s, 4-ch DI/O, 2-ch AO

Specifications

<table><tr><td>Model Name</td><td>SDAQ-216</td><td>SDAQ-218</td></tr><tr><td colspan="3">System Specifications</td></tr><tr><td>Ethernet (1Gb)</td><td colspan="2">2x RJ45 Ethernet ports (1 IP, Ethernet cascade supported)</td></tr><tr><td>MCU</td><td colspan="2">ARM Cortex A9 1.0GHz</td></tr><tr><td>NAND Flash (eMMC)</td><td colspan="2">32GB</td></tr><tr><td>Memory</td><td colspan="2">DDR3 RAM 1GB</td></tr><tr><td>USB</td><td colspan="2">2x USB 2.0 (for Wi-Fi dongle and USB storage only)</td></tr><tr><td>Power Supply</td><td colspan="2">9 to 30V DC power input</td></tr><tr><td>Power Consumption</td><td colspan="2">Max. 8.8W</td></tr><tr><td>Isolation</td><td colspan="2">1.5kV</td></tr><tr><td>Communication Interfaces</td><td colspan="2">Web Console / RESTful API / Streaming SDK / Modbus TCP Server</td></tr><tr><td>Digital Temperature Sensor</td><td colspan="2">-50°C to 150°C (with 3 meter cable)</td></tr><tr><td colspan="3">Analog Input</td></tr><tr><td>Resolution</td><td colspan="2">16-bit</td></tr><tr><td>Number of Channels</td><td>16 SE / 8 pseudo-diff, voltage input</td><td>8 current inputs</td></tr><tr><td>Maximum Sampling Rate</td><td colspan="2">250 kS/s (multiplexing)</td></tr><tr><td>Input Range</td><td>±10V, ±2.5V, ±1.25V, ±312.5mV</td><td>0-20 mA</td></tr><tr><td>Offset Error</td><td>±0.1 mV (±10V)</td><td>±0.01 mA (typical)</td></tr><tr><td>Gain Error</td><td>±0.05% of FSR (±10V)</td><td>±0.05% of FSR (typical)</td></tr><tr><td colspan="3">Analog Output</td></tr><tr><td>Resolution</td><td colspan="2">16-bit</td></tr><tr><td>Number of Channels</td><td colspan="2">2 voltage or current outputs</td></tr><tr><td>Maximum Update Rate</td><td colspan="2">100 KS/s</td></tr><tr><td>Output Range</td><td colspan="2">±10 V or 0-20 mA</td></tr><tr><td colspan="3">Digital I/O</td></tr><tr><td>Number of I/O</td><td colspan="2">4 DI and 4 DO</td></tr><tr><td>Digital Type</td><td colspan="2">TTL input: 0-5V for DI / open drain for DO</td></tr><tr><td>Input Logic Level</td><td colspan="2">Logic low: VIL = 0.8 V max. / IIL = 0.2 mA max. / Logic high: VIH = 2.0 V min. / IIH = 0.2 mA max.</td></tr><tr><td>RS-485</td><td colspan="2">Number of Ports -&gt; 1Function -&gt; Modbus RTU Master</td></tr><tr><td>Overvoltage Protection</td><td colspan="2">±50V</td></tr><tr><td colspan="3">Mechanical</td></tr><tr><td>Dimensions</td><td colspan="2">110.5 (L) x 40 (W) x 126.5 (H) mm</td></tr><tr><td>Connectors</td><td colspan="2">2x 14-pin + 2x 6-pin spring-type terminal block</td></tr><tr><td>Front Panel LEDs</td><td colspan="2">4</td></tr><tr><td>Housing</td><td colspan="2">Metal, IP30</td></tr><tr><td>Mounting</td><td colspan="2">DIN rail kit (wall mount kit optional)</td></tr><tr><td colspan="3">Environmental</td></tr><tr><td>Operating Temperature</td><td colspan="2">0°C to 50°C (32°F to 122°F)</td></tr><tr><td>Storage Temperature</td><td colspan="2">-20°C to 70°C (-4°F to 158°F)</td></tr><tr><td>Humidity</td><td colspan="2">approx. 95% @ 40°C (non-condensing)</td></tr><tr><td>Vibration</td><td colspan="2">Operating: 5 Grms, 5-500 Hz, 3 axes</td></tr><tr><td>Shock</td><td colspan="2">Operating: 100 G, half sine 11 ms duration</td></tr><tr><td>EMC</td><td colspan="2">EN61000-6-4/EN61000-6-2</td></tr><tr><td>EMI</td><td colspan="2">FCC Part 15B Class A, CISPR 32</td></tr><tr><td>EMS</td><td colspan="2">IEC 61000-4-2 ESD: Contact: 4 kV; Air: 8 kVIEC 61000-4-3 RS: 80 MHz to 1.0 GHz, 10 V/mIEC 61000-4-4 EFT: Power: 2 kV; Signal 2 kVIEC 61000-4-5 Surge: Power 0.5 kV; Signal 1 kVIEC 61000-4-6 CS: 0.15 MHz to 80 MHz, 10 VIEC 61000-4-8 PFMF</td></tr><tr><td>Safety</td><td colspan="2">IEC 61010-1</td></tr></table>
[🔗 Link to the original document](.sdaq-216-218-20230515/sdaq-216-218-20230515.pdf)