Data Sheet

dScript

dScript User Manual v2.15

First we need to add the following to the dScript program to define the relay:

digitalport Rly1 1

so we have:

tcpip.hostname "dS3484"

tcpip.ip "192.168.0.136"

tcpip.mask "255.255.255.0"

digitalport Rly1 1

main: do

loop

The button line on the web page needs some more code, change it to:

<button id="Rly1" onmousedown="newAJAXCommand('dscript.cgi?Rly1=2');">Yard

Lights</button>

We have given the button the id "Rly1" so we can refer to it to update the colour. We also

added onmousedown="newAJAXCommand('dscript.cgi?Rly1=2');"

The general format for changing something on the module is

"newAJAXCommand('dscript.cgi?name=value');"

Where a name is a defined resource in the dScript program and value is what you want to

assign to it. In the case of digitalport objects, 0 will clear it, 1 will set it and 2 will toggle it.

dscript.cgi is the file that processes these commands, you do not need to supply this file as it's

built in.

We also need to add just a little javascript to make it happen. It's a single function containing

one line of code (and the start/end script tags)

function ajaxUpdate()

{

document.getElementById('Rly1').style.backgroundColor =

(getValue('Rly1')=='1') ? 'rgba(255,0,0,0.2)' : 'rgba(0,0,255,0.2)';

}

</script>

ajaxUpdate is a callback function you must include, it is called whenever new variable data

arrives from the module so you can update your web page.

getValue('Rly1') is a function you call from within ajaxUpdate to retrieve the value of your

variables. The variable name must be identical to the one used in your dScript program.