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Chapter 1

Introducing the WebDAQ 504

The WebDAQ 504 is part of the WebDAQ Series of Internet enabled data loggers. WebDAQ 504 is a vibration

and acoustic acquisition and logging device that provides the following features:

 4 simultaneously sampled analog inputs

 24-bit resolution

 Data rates up to 51.2 kS/s per channel

 AC/DC coupling

 IEPE signal conditioning

 Anti-aliasing filters

 Overvoltage protection

 Four bidirectional, isolated DIO

 10/100 Ethernet interface

 Support for USB WiFi adapters for wireless connectivity

 Support for USB mass storage devices and SD cards for data logging or file transfer

 Powered by a +9 VDC external supply (included)

WebDAQ Series devices are designed with an integrated operating system and web interface. You

communicate with the device over a network connection using the web interface opened in a web browser.

 Mobile support – access the WebDAQ 504 from any device with a web browser, such as a phone or tablet

 Remote monitoring and control

 Run simple to complex logging operations

 Flexible task scheduling

The WebDAQ 504 is designed with the Raspberry Pi Compute Module, featuring a quad core processor with

speeds up to 1.2 GHz, 1GB RAM and 4 GB Flash memory.

Integrated operating system and web service

The WebDAQ 504 is a complete data acquisition system containing an embedded operating system and web

server. The operating system resides in internal flash memory, and includes a web service and device driver. All

configuration, acquisition, and data management is performed using the web interface.

Ethernet interface

The WebDAQ 504 has a built-in 10/100 BASE-T auto-negotiation, high-speed communication port. You can

access and configure your WebDAQ 504 from anywhere with access to the network to which it is connected.

A unique MAC address is assigned to each device at the factory. You configure the Ethernet connection settings

through a web interface. The default network name uses the format

webdaq-xxxxxx, where xxxxxx are the

lower six digits of the factory-assigned MAC address. You can change this name with the web interface.

Measurement Computing WebDAQ 504 User Manual

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