Hello ixo65,

You were spot on with the wrong Logo 8, all working now with your programme....thank you !

I have also got a AM2 RTD for a PT100 thermocouple, how would I create  a simple programme

that has  3 variable O/P's two for cooling and one to switch a heater

thank you in advance ....... again

Here is a small example.
The number of the analog input is dependent on whether the basic module has, and how many of them are activated.

On the base module not enabled: First number of AI of the 1st expansion module is AI1.
On the base module 2 activated: First number of AI of the 1st expansion module is AI3.
On the base module 4 activated: First number of AI of the 1st expansion module is AI5.

You can activate them in "File> Properties> Properties Offline> I / O settings" check or change.

Default setting: 2 activated.

Thank you ixo65.................thanks a great help

Just another quick one (or two !)

How do you make the set points selectable on the TDE ?

What's the easiest way to switch between pages on the TDE for example Welcome page, heating page and cooling page ?

Thank you yet again