Recent content by mtennant

I agree about the lack of field firmware upgrades. If you find it necessary to upgrade and have a working system, you will need two systems. The low cost actually makes this possible, but still a pain.

I have the latest, 03.02.11. Just got it back from CAI. Many thanks. Marty in SC

jamesg said: I have been working on perl code to control the board and I am using it explicitly for my uses. My big motivation for doing it was template/variables in the PLC code without having to do multiple steps. If people are interested I will release this code publicly when it is more...

I feel pretty stupid. I was expecting something more esoteric due to the new firmware and time parameters. Thanks Lou.

Would it be possible to see example code from CAI for this check 2012 (or later) function? Marty in SC

I'm not a fan of snap switches for solar collectors. I can't imagine placing a fixed value sensor/switch in a sealed box when a 1-Wire or standard thermocouple will do the job, connected to a programmable controller. The conventional wisdom is 110 on, 90 off. I found that wrong for me. I'm...

I'm going to be using mine as a controller for a home built solar hot air collector. It is ambitious, but doable. I'm currently waiting on my 2.2.2 HW revision board to come back with the 2012 firmware. The code would also need to be able to support parallel processing of temperature data and...

The CAI WebControl can support eight 1-Wire sensors and one humidity sensor. I don't know how you could add more humidity sensors, but it might be possible with the analog inputs available. Perhaps CAI support could comment?

They should say so. Otherwise, that aren't, in my experience.

What would you try to do differently in your firmware than CAI has done?

I understand it is available 1-1-2012. Not sure of the revision number. I doubt you have it. You should email support at CAI.

To manually set a VAR value from outside: http://192.168.1.15/api/setvar.cgi?varid=1&value=23456789 Found here: http://cainetworks.com/products/webcontrol/webcontrol-faq.html

I got five and they work fine. The seller was cole-0520. Are you going to send your CAI board in for the new firmware? It is free within 30 days of purchase.

Another question. Is there anyway to comment out a line of PLC code without deleting the code itself? Or anyway to add a comment to a line of code while keeping the code active?

Lou, I've searched all over the Internet, and I've decided you are the best coder for CAI PLC out there! (except for CAI Support :-). If there are others, I hope they find us here! Thanks for sharing your expertise. People like me that want to take these boards to their limits need people like...