Toddd Member T Join Date Nov 2005 Location madison Posts 3 Nov 29, 2005 #1 How do you go about programming a thumbwheel switch's i/o address?
elevmike Member Join Date Feb 2004 Location Detroit, MI Posts 4,012 Nov 29, 2005 #2 That entirely depends on the type of thumbwheel and PLC. Do you have any specifics?
Toddd Member OP T Join Date Nov 2005 Location madison Posts 3 Nov 29, 2005 #3 It is a LogixPro PLC simulator, with a Celsius degree being turned to Fahrenheit by math instructions.
It is a LogixPro PLC simulator, with a Celsius degree being turned to Fahrenheit by math instructions.
elevmike Member Join Date Feb 2004 Location Detroit, MI Posts 4,012 Nov 29, 2005 #4 What about the thumbwheel? What kind of output for the thumbwheel? (Bin, BCD, serial etc...)
CaseyK Member Join Date Feb 2004 Location In the cornfields, on the prarie, outside Chi-Town Posts 1,731 Nov 29, 2005 #5 I have always done it the hard way, with BCD switches into a lot of inputs, then wierd math. Never done it the simple method.
I have always done it the hard way, with BCD switches into a lot of inputs, then wierd math. Never done it the simple method.
elevmike Member Join Date Feb 2004 Location Detroit, MI Posts 4,012 Nov 29, 2005 #7 CaseyK said: I have always done it the hard way, with BCD switches into a lot of inputs, then wierd math. Never done it the simple method. Click to expand... Casey, this is the hard way. It's commonly refered to as the game of "20 Questions".
CaseyK said: I have always done it the hard way, with BCD switches into a lot of inputs, then wierd math. Never done it the simple method. Click to expand... Casey, this is the hard way. It's commonly refered to as the game of "20 Questions".
Ken Moore Lifetime Supporting Member Join Date May 2004 Location North, West, South Carolina Posts 3,480 Nov 30, 2005 #8 Well let's assume you have a BCD thumbwheel, and dosn't understand what BCD is. Check out this link for and explanation of BCD. BCD link After that, check back in and we can go to the next step, converting BCD to decimal.
Well let's assume you have a BCD thumbwheel, and dosn't understand what BCD is. Check out this link for and explanation of BCD. BCD link After that, check back in and we can go to the next step, converting BCD to decimal.
Steve Bailey Lifetime Supporting Member + Moderator Join Date Apr 2002 Location The boondocks of Western Massachusetts USA Posts 8,605 Nov 30, 2005 #9 Is this what you're looking for? http://www.plctalk.net/qanda/showthread.php?t=18730
jvdcande Member Join Date Apr 2002 Location Menen Posts 2,178 Nov 30, 2005 #10 I never realised a thumbwheel switch had an address, I always thought it was a simple dumb wheel switch. I have been active in this field of experience for 25 years thinking it was the inputcard that had an address. Silly me . Regards,
I never realised a thumbwheel switch had an address, I always thought it was a simple dumb wheel switch. I have been active in this field of experience for 25 years thinking it was the inputcard that had an address. Silly me . Regards,