[Owfs-developers] Fw: Fwd: [owfs - Help] DS2450 and the NSLU2 (SLUG)

[Rob Conway]

Paul, It happens so infrequently (once a month) it only really effects my SMTP alarm generation as it gives a false alarm.  I'll monitor the errors when either a spike happens or the PIO.x mystically goes to 0 to try and narrow down the problem.  The spike maybe my voltage source anyhow, hard to prove.   Switch function I assumed that when not reading voltage you would set PIO.x to 1 = on 0 = off   Voltage reading I thought that normal operation (ie reading voltage) the PIO.x values would of been set to 0, however they have to be set to 1 to read voltage.  1 is the default setting anyhow.  That would then mean when I read voltage owfs should "reset" the PIO.x which must mean we turn these PIO.x to 1.   Reliable output switching On the basis a network is healthy, have you seen any unreliable switching of the 1wire switch outputs.  The biggest thing this is stopping me doing is providing control outputs via the 1wire switch's.  I did want to control some water solenoids (non critical, although potentially very wet)  and I did not really want these to maybe false trigger, like my DS2450's PIO.x.  I was thinking of using the output of a 1wire switch as an input to a external PICaxe with the PIC having a simple program monitoring its input for a pulse train (say three pulses) and provide a supervised latched output.  Can you think of any other  way to provide a secure switched output, maybe two switches in series ?    thanks for your help...owfs is such a great development,       rob SLUG + 1wire + owfs + rrdtool + thttpd + smtpclient + NTP = 1 rock'n little SLUG for data collection       ----- Original Message ----- From: Alfille, Paul H.,M.D. To: owfs-developers@lists.sourceforge.net Sent: Saturday, November 04, 2006 2:11 AM Subject: Re: [Owfs-developers] Fwd: [owfs - Help] DS2450 and the NSLU2 (SLUG) Rob,   You aren't using the DS2450 as a switch, just a volt meter. You needn't touch the PIO values. In fact, we are so measurement favoring that any switch settings will be reset whenever you try to read voltages.   (The confusion is that the same A/D volt-reading pins can be used for switching. The man page tries to warn you that the volt reading will wipe out switch activity).   Paul Alfille -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]On Behalf Of Rob Conway Sent: Friday, November 03, 2006 8:24 AM To: owfs-developers@lists.sourceforge.net Subject: Re: [Owfs-developers] Fwd: [owfs - Help] DS2450 and the NSLU2 (SLUG) Christian The DS2450 PIO description seems alittle confusing..see below  I know the corresponding PIO.x has to be set (1) to be able to read from the Volt.x parameters, otherwise the Volt.x parameter are always 0.0000 irrespective of the channels input.   extract from DS2450 PIO.A ... PIO.D PIO.ALL read-write, yes-no Pins used for digital control. 1 turns the switch on (conducting). 0 turns the switch off (non-conducting). Control is specifically enabled. Reading volt will turn off this con- trol. ALL is an aggregate of the voltages. Readings are made separately. ----- Original Message ----- From: Rob Conway To: owfs-developers@lists.sourceforge.net Sent: Saturday, November 04, 2006 12:11 AM Subject: Re: [Owfs-developers] Fwd: [owfs - Help] DS2450 and the NSLU2 (SLUG) Christian I did a standard ipkg install and just rebooted, owfs picked up the 4 devices on the network and I did not do anything else.  Basically I use it as a data collector and simple web server "owfs + rrdtool + thttpd + smtpclient + NTP   I have used the TOP command to monitor CPU load and thttpd only takes 1-2 % CPU load to serve web pages and my script when it runs takes less than 1% load.  rrdtool can take up to 90% cpu utilisation. today did an ipkg update and it reported an update to  "owlib on root from 2.4p1-1 to 2.5p5-4..."       How do you read your sensors from the NSLU2? Answer:  just use a bash script to gather the data...see below... didn't know ifI should use cached or uncached so I used uncached     ## Read script ############     #!/bin/bash   PH=$(/opt/bin/awk '{printf "%4.2f\n",((($0-1)/2.6667)+5.5)}' /tmp/1wire/uncached/20.B71F05000000/volt.A)   US=$(/opt/bin/awk '{printf "%5.1f\n",($0*100)}' /tmp/1wire/uncached/20.B71F05000000/volt.B)   T_DEGC=$(/opt/bin/awk '{printf "%3.1f\n",((($0-1)*5)+20)}' /tmp/1wire/uncached/20.B71F05000000/volt.C)   CO2=$(/opt/bin/awk -v PH="$PH" '{printf "%4.1f\n",((3*$0)*(10^(7-PH)))}' /public/kh_value)   TDS=$(/opt/bin/awk -v COND="$US" '{printf "%3.1f\n",(COND*$0)}' /public/tds_factor)   LITRES=$(/opt/bin/awk '{printf "%3.1f\n",(($0-3.1)*65)}' /tmp/1wire/uncached/20.952A05000000/volt.D)   rrdtool update /public/aquaph.rrd N:$PH   rrdtool update /public/aquadegc.rrd N:$T_DEGC   rrdtool update /public/aquaco2.rrd N:$CO2   rrdtool update /public/aquacond.rrd N:$US   rrdtool update /public/level.rrd N:$LITRES ##########################   Are the grahps generated on the actual NSLU2? Answer: Yes I use rrdtool, on the NSLU2   Do you read from a mounted fuse-filesystem on the NSLU2, or are you connecting to a running owserver on the NSLU2? Answer: I just read from the file system   Do you use the owshell-commands on a NSLU2 or some other remote-server? Answer: Everything is running on the NSLU2,   Do you use the Bonjour/Zeroconf feature on the NSLU2? Answer: ??? Don't know what this is, must have a look ? never touched any of the owfs configuration files.  Just use the :3001 web page to view some data and reset the PIO.x flags.     Is it normal to have all these processes running for 4 off 1wire devices on the network ?   ## Output of ps ################ 446 root        848 S   owserver -P /opt/var/run/owserver.pid -u -p 3002   456 root        852 S   owserver -P /opt/var/run/owserver.pid -u -p 3002   462 root        928 S   owfs -P /opt/var/run/owfs.pid -s 3002 /tmp/1wire   464 root        928 S   owfs -P /opt/var/run/owfs.pid -s 3002 /tmp/1wire   466 root        928 S   owfs -P /opt/var/run/owfs.pid -s 3002 /tmp/1wire   471 root        628 S   owftpd -P /opt/var/run/owftpd.pid -s 3002 -p 0.0.0.0:   474 root        628 S   owftpd -P /opt/var/run/owftpd.pid -s 3002 -p 0.0.0.0:   475 root        628 S   owftpd -P /opt/var/run/owftpd.pid -s 3002 -p 0.0.0.0:   476 root        628 S   owftpd -P /opt/var/run/owftpd.pid -s 3002 -p 0.0.0.0:   481 root        488 S   owhttpd -P /opt/var/run/owhttpd.pid -s 3002 -p 3001   484 root        492 S   owhttpd -P /opt/var/run/owhttpd.pid -s 3002 -p 3001   488 website    4056 S   /usr/sbin/thttpd -C /etc/thttpd-website.conf   639 root        928 S   owfs -P /opt/var/run/owfs.pid -s 3002 /tmp/1wire   640 root        928 S   owfs -P /opt/var/run/owfs.pid -s 3002 /tmp/1wire   641 root        928 S   owfs -P /opt/var/run/owfs.pid -s 3002 /tmp/1wire   644 root        492 S   owhttpd -P /opt/var/run/owhttpd.pid -s 3002 -p 3001   702 root        492 S   owhttpd -P /opt/var/run/owhttpd.pid -s 3002 -p 3001   715 root        928 S   owfs -P /opt/var/run/owfs.pid -s 3002 /tmp/1wire   789 root        928 S   owfs -P /opt/var/run/owfs.pid -s 3002 /tmp/1wire  5218 root        928 S   owfs -P /opt/var/run/owfs.pid -s 3002 /tmp/1wire  5219 root        928 S   owfs -P /opt/var/run/owfs.pid -s 3002 /tmp/1wire  5220 root        928 S   owfs -P /opt/var/run/owfs.pid -s 3002 /tmp/1wire  9222 root        824 S   upnpd &>/dev/null 10012 root       1828 S   sshd: [EMAIL PROTECTED] 10014 root        568 S   -sh 10236 root        852 S   owserver -P /opt/var/run/owserver.pid -u -p 3002 10237 root        852 S   owserver -P /opt/var/run/owserver.pid -u -p 3002     cheers from australia             ----- Original Message ----- From: Christian Magnusson To: owfs-developers@lists.sourceforge.net Sent: Friday, November 03, 2006 11:40 PM Subject: Re: [Owfs-developers] Fwd: [owfs - Help] DS2450 and the NSLU2 (SLUG)   How do you read your sensors from the NSLU2?   Are the grahps generated on the actual NSLU2? Do you read from a mounted fuse-filesystem on the NSLU2, or are you connecting to a running owserver on the NSLU2? Do you use the owshell-commands on a NSLU2 or some other remote-server? Do you use the Bonjour/Zeroconf feature on the NSLU2?   I'm just trying to figure out if it could be a network problem (either hardware or owfs-network code), fuse-related problem, mDNS bugs (in my quick compilation), or problem the new owshell commands.   /Christian     Från: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] För Paul Alfille Skickat: den 3 november 2006 12:24 Till: owfs-developers@lists.sourceforge.net Ämne: [Owfs-developers] Fwd: [owfs - Help] DS2450 and the NSLU2 (SLUG)   >From the forum: ---------------------- Read and respond to this message at: https://sourceforge.net/forum/message.php?msg_id=3993682 By: rob_conway First post to this group however have been usinf owfs for a couple fo months and want to grow my network.  I have loaded owfs on my NSLU2 "aka SLUG" and have a number of devices off the link.  It works great 99.9% of the time and am very pleased.  I log the data and sync to NTP time and display this on a web page. I was wondering if anybody else has seen the following with respect to the DS2450 (4 ch A/D) a/ A PIO channel sometimes, maybe once per month, change from 1 to 0 thus disabling the analog input channel.  I then go back into the interface (web page) and change it back to 1 and all is well again.  It can happen on any of the the four channels however only 1 channel PIO gets changed.  I have no scripts quering PIO.x  I suppose a fix maybe to query the PIO.x's and set it if its 0. b/ The analog input reading seems very noisy ie the values change +/- 0.1 volts on the Volt.x register ie 0-5v scale.  I have ended up doing a number of reads and averaging the result over a 15 minute period. c/ You will also see on the attached link below a spike on one of the temperature inputs.  This can happen very infrequent and also late in the morning so I have discounted any type of interference. http://img.photobucket.com/albums/v319/rjconway/1wire.jpg cheers rob ______________________________________________________________________ You are receiving this email because you elected to monitor this forum. To stop monitoring this forum, login to SourceForge.net and visit: https://sourceforge.net/forum/unmonitor.php?forum_id=292718 ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Owfs-developers mailing list Owfs-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/owfs-developers ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? 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Using Tomcat but need to do more? Need to support web services, security?
Get stuff done quickly with pre-integrated technology to make your job easier
Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642
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