Instructions
UM-0085-B09  DT80 Range User Manual  Page 124 
RG 
Part I – dEX 
What is dEX? 
The DT80 provides an embedded web interface (dEX) that provides simple, intuitive access to the logger’s operations 
using a standard web browser. You can view current sensor readings, job status and access data and other files stored 
in the file system. 
The standard web interface is built into the logger’s firmware. It does not need to be installed on the logger or on your 
PC. Simply use your existing browser to browse to the logger’s IP address and the home page will be displayed. 
Important: dEX version 1.84 covered in this manual 
dEX vs. Classic Web Interface 
The DT80 actually features two web interfaces: 
•  dEX, also known as the enhanced web interface, is available on all Series 2 or later loggers. This uses Adobe 
Flash technology to provide a full-featured and easy to use interface. 
•  The classic web interface is available on all loggers. This HTML-based interface has fewer features than the 
enhanced interface, but it is customisable and is also more suitable for slow connections and small-screen web 
clients. 
The following table summarises the differences between the two web interfaces: 
Feature 
dEX 
Classic web interface 
Display basic logger information (serial number, firmware version etc.) 
yes 
yes 
Display schedule status (log/run status, number of logged records, etc.) 
yes 
yes 
Display current channel values in tabular form 
yes 
yes 
Display event logs 
yes 
yes 
Display user manual, release notes, etc. 
yes 
yes 
Graphically configure the logger, i.e. define schedules, channels and global settings 
without using the logger command language 
yes  - 
Display selected channels in a configurable "mimic" displays, including trend charts 
yes 
- 
Unload data and save to CSV or DBD file 
yes 
- 
Text command window (similar to DeTransfer) 
yes 
- 
Display current job's program text  yes  - 
Display file system free/used space breakdown 
yes 
- 
Display TEST and SERVICEDATA command response 
yes 
- 
User customisable branding (images, web links, help pages) 
yes 
- 
Menu options can be selectively disabled or restricted 
yes 
- 
Suitable for low bandwidth connection e.g. dial-up modem  -  yes 
Suitable for small screen client e.g. PDA 
- 
yes 
User customisable HTML pages 
- 
yes 
Connecting to the Web Interface 
In order to access the DT80 web interface, a TCP/IP connection between the DT80 and the PC is required. You can 
either: 
•  connect the DT80's Ethernet port to a local area network, or directly to the PC using an Ethernet cross-over 
cable (see Ethernet Communications (P231)) 
•  use DtUsb to provide a TCP/IP connection via a USB cable (see USB Port (P187)) 
•  start a communication session using the integrated modem on DT8xM models (see Integrated Modem (P207)) 
Once a TCP/IP connection has been established, all you need to do is type the DT80's IP address into the address field 
of your browser. The web interface home page should then be displayed. 
dEX Home Page 
For Series 1 loggers, when you enter the DT80's IP address into your browser you will be immediately directed to the 
home page for the classic web interface (Series 1 loggers do not support dEX). See Classic Web Interface (P167) for 
more details. 










