Data Sheet

dS2824

dS2824 User Manual v3.01

Introduction

The dS2824 is an Ethernet connected relay module featuring 24 channels of 16Amp 250Vac

relays. Each relay has both normally open (NO) and normally closed (NC) as well as the

common available on three terminals.

In addition to the relays, the dS2824 has 8 flexible I/O channels which may be individually

configured to be:

1. NPN transistor output.

2. Active low input with pull-up (allows direct connection of volt free contacts).

3. Active low input without pull ups (easy to connect logic level inputs).

4. Analogue 12-bit inputs using a 4.096v reference (0v-4.096v input range).

5. Analogue 12-bit inputs using a 5v reference (0v-5v input range).

The dS2824 requires a 12v 1.5Amp power supply such as this one:

http://www.robot-electronics.co.uk/universal-12vdc.html

The dS2824 has four built in control methods.

Primary control method is graphically by using its built in secure website.

Secondary control may be one of:

ASCII - type in commands via a program such as PuTTY.

Binary - Command set using binary codes

Modbus – Functions 1, 4, 5 and 15 supported

And if you should wish to modify the supplied firmware – you can.

Behind the scenes there is dScript, a powerful multi-threaded operating system and

programming language. The supplied firmware is written in dScript as well as HTML, CSS and

Javascript on the webpages and the full source is in the separately down-loadable dScript

support package.

You do not need to use dScript at all, but its great to know its there - just in case you do.