Yes, the capacitor is soldered across the DATA and GND lines, one side of the capacitor to the DATA line and one side of the capacitor to the GND line.
Hey JeffCharger,
Did the resistor and capacitor fix your problem?
Hey JeffCharger,
Did the resistor and capacitor fix your problem?
i haven’t had a chance to pick them up yet…but everything has been running fine since…I will do anyway, because it really hurts when this stuff fails!
I have put together the capacitor and resistor gizmo. Of course, Murphy’s Law got me…I had the lines swapped when I first assembled. I now have it working on my test system. I can’t really tell whether it has done anything, since it operates the same with or without the new components.
The real test will be putting on my production system where I have the weather system and 5 or 6 other sensors feeding it.
I have 2 questions:
-
I have the resistor setup so that the power enters from the bottom, with the ‘bands’ on the top. Is this correct? (what syptoms would it exhibit if it were reversed?)
-
Is there any polarity to the capacitor? I just have it bridging across the two lines.
Cross your fingers for me!
…Thanks
The resistor will work no matter which orientation you put it. The capacitor has no polarity. Sounds like you’ve done it correctly.
One note: I found out that this RC network will help when using the original DS9097U adapter. It will NOT work with the iButton LINK adapter sold on this website: http://www.ibuttonlink.com/
I ended up getting a LINK adapter because of it’s increased capabilities, both in operation and in diagnostics. It was well worth the $35 once we all figured out that it wasn’t working correctly due to the RC network being in place.
I will be onsite tomorrow so I will give it a try! Thanks for your assistance.
If this doesn’t stabalize my setup I’ll either have to get another DS9097U or try the Ibutton Link adapter. Does the link adapter attempt to solve some of the signal problems that this ‘gizmo’ will?
Yes, the LINK adapter was designed to solve signal problems that occur on the 1-wire network. So far, it’s helped a lot with my situation. And the support from the manufacturer is outstanding.
Glad to help,
I built the “gizmo” and installed it - hoping that my signal reading problems would disappear. After a couple of hours it encountered the same problems. A/D conversions. Even with only a couple of devices attached it won’t stay up. Once this happens, WD seems to keep the CPU at between 80-90% utilization (on a 800mhz machine).
I think I must have bad luck with the DS9097U’s.
I am thinking that I should order the ibutton device hoping that it would be better.
Oh well, another week or so won’t hurt that much!