Post by thread:SV: SV: [PIC]: Dallas One-Wire devices

Speaking of one-wire devices...... Does anyone here have any idea as to what the maximum cabling length can be, between the controller (16F877) and the device (DS18S20)? Larry -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email spam_OUTlistservTakeThisOuTmitvma.mit.edu with SET PICList DIGEST in the body

> Speaking of one-wire devices...... > > Does anyone here have any idea as to what the maximum cabling length > can be, between the controller (16F877) and the device (DS18S20)? > Larry, It depends upon the cable type you use. From application note 132: For up to 5m the cable type is non-critical. Regular UTP is good for 25m Cat-3 is good for up to 125m Cat-5 is good up to 300m With specialized line drivers Dallas claims you can go to 600m michael brown -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email .....listservKILLspam@spam@mitvma.mit.edu with SET PICList DIGEST in the body

On Fri, Feb 14, 2003 at 03:22:07PM -0500, Larry Reynolds wrote: > Speaking of one-wire devices...... > > Does anyone here have any idea as to what the maximum cabling length > can be, between the controller (16F877) and the device (DS18S20)? According to this App Note 148, "Guidelines for Reliable 1-Wire Networks", about 750 meters: http://www.maxim-ic.com/appnotes.cfm/appnote_number/857/ln/en Also check out App Note 193, "Extending 1-Wire Range With Network Proxies": http://www.maxim-ic.com/appnotes.cfm/appnote_number/1031/ln/en -Dave -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listservKILLspammitvma.mit.edu with SET PICList DIGEST in the body

Mike & Dave, I thank you for the 'info-poop' on the one-wire line lengths. Larry -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email .....listservKILLspam.....mitvma.mit.edu with SET PICList DIGEST in the body