In SX Microcontrollers, SX/B Compiler and SX-Key Tool, capdiamont wrote: Bean: That seems to work, though I don't know where my watch variables have went. I used to have a nice screen showing me the values. Something went wrong, it didn't work. Problem is I'm miles from home to fully troubleshoot it. I'm just sxsiming it for now. Thus the need for the watch variables. I know the 24v power supply will power the valves, and the wiring is good. I jumpered one side of the power supply to each valve zone and they work. Reading specs, they are supposed to be 2 watts at 24vAC. I used LAA710STR Description: SOLID STATE DUAL POLE OPTOMOS RELAYS Brand: CLARE data sheet http://www.clare.com/home/pdfs.nsf/0/DEDCD3902414AD6185256D3500556911/$file/LAA710_R01_1.pdf which is able to handle 1 amp up to 60v What little I can tell, the code looks ok. Might be the the wiring to that part, or that part. I figure pins 2 and 4 go to ground. Pins 1 and three to output pin via 470 ohm resistor. I used 440 ohm(two 220 ohm in series) 1/4 watt. The other side. Pins 6 and 7 are tied together and ran to the supply side of the transformer. Pins 5 and 8 goes out to respective zone valves then returns on common black wire to other side of transformer. My other thoughts is maybe the part is wired up right, and couldn't handle the startup amp surge, or collapsing voltage from the valve. ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=273648#m273907 Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2008 (http://www.dotNetBB.com)