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What about the printer port?
I have input encoders directly without the buffers shown in the attached link.
DRO SOFTWARE
Al.
PC Base DRO Hi All Gurus,
I am building a PC Based CNC and need some Data Acquisition through Magnetic Linear Scale. I am looking for any supportfrom you to read the encoder signals through COM (RS232) or USB. I have gone through Bill Tod's Thread but he is using some thing else than that of mine. My encoder have 9 wires and can connect to the DRO Supplied by the vendor (Welcome To Innovative) the worst thing is DRO has no O/P for PC.
I have both encoder and dro from the same vendor. and wants to eliminate DRO while connecting the encoders to PC.
What about the printer port?
I have input encoders directly without the buffers shown in the attached link.
DRO SOFTWARE
Al.
CNC, Mechatronics Integration and Custom Machine Design (Skype Avail).
“Logic will get you from A to B. Imagination will take you everywhere.”
Albert E.
Hummm I have gone through it before. But My LPT is already populated with relay board and dont have any chance to add an PCI LPT port. so no choice but to go for Serial one (USB / RS232).Originally Posted by Al_The_Man
I can have Cha A and Cha B TTL Signals through my encoder.
Last edited by aadityadengle; 02-05-2012 at 04:21 AM. Reason: additional info
The only solution I can think of is using a uC (Arduino, PIC, etc...) to read the encoder and report the position via the serial port. Having said that, this is a very unusual approach. Most people don't bother reading an encoder... they just build a system that doesn't miss steps.
James hosts the single best wiki page about steppers for CNC hobbyists on the net:
http://www.piclist.com/techref/io/steppers.htm Disagree? Tell him what's missing! ,o)
Now i have encoders as per attached document and need interfacing module
got some idea about LS7266R1...... checking out..............
Prompting from expert appreciated
There is some info out there on the web, what kind of processor IC are you using?
Quadrature Encoder and PIC 16F870
Al.
CNC, Mechatronics Integration and Custom Machine Design (Skype Avail).
“Logic will get you from A to B. Imagination will take you everywhere.”
Albert E.
What's wrong with their pc interface?
Welcome To Innovative
Here's an inexpensive serial to RS422 adapter
http://www.amazon.com/RS232-To-RS422-Converter-Adapter/dp/B003MMS92O]Amazon.com: RS232 To RS422 Converter Adapter: Computers & Accessories
Bob
"Bad decisions make good stories."
That is not made for differential RS420 encoders though.
Al.
CNC, Mechatronics Integration and Custom Machine Design (Skype Avail).
“Logic will get you from A to B. Imagination will take you everywhere.”
Albert E.
@ bill,
The PCI card is discontinued, and also its not only to apply something but to learn a bit out of that.
@ al_the_man
please have a look on DRO_Plus Project - by Tom Kulaga, I want to do the exactly same but for the PCI. as ISA slots are now not available on the motherboards. also its not worth to use any kind of ISA to PCI converter
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