bettim Posted January 6, 2012 Report Share Posted January 6, 2012 Hi all, I need to connect Incremental Shaft Encoder at JAZZ plc Can anybody help me to use two HSI inputs at JAZZ like M90, Shaft Encoder Best Regards Quote Link to comment Share on other sites More sharing options...
Emil Posted January 8, 2012 Report Share Posted January 8, 2012 The "shaft encoder" funciton (recognizing rotating direction according to A & B signals) - "like in M91" is hardware, microprocessor funciton. CPU of Jazz doesn't support this function. If you really need ot connect shaft encoder A and B signals, you need to use at least M91. Quote Link to comment Share on other sites More sharing options...
bettim Posted January 8, 2012 Author Report Share Posted January 8, 2012 Thank you, Emil I made program “U90Ladder” to use two inputs of Jazz like A&B signals but rotating speed must be small and encoder with small number imp/rot. Quote Link to comment Share on other sites More sharing options...
Emil Posted January 8, 2012 Report Share Posted January 8, 2012 Theoretically, this is possible and can be done in Ladder. You just need ot compare status of two inputs. In first though I think this will take 2 to 4 nets. Maybe I'm missing somethhing... But - this will work really, really slow. I think - no more than 10 pulses per second. Quote Link to comment Share on other sites More sharing options...
bettim Posted January 8, 2012 Author Report Share Posted January 8, 2012 Hi,Emil Yes, but Jazz plc have two high speed inputs, If I use like counter input is working well with high speed I will tray sometime and forget it. Quote Link to comment Share on other sites More sharing options...
MVP 2023 Joe Tauser Posted January 8, 2012 MVP 2023 Report Share Posted January 8, 2012 It's not a matter of subtracting one counter from another. You have to write logic to determine which input goes on first to see which way the encoder is turning. Do a Google search on "quadrature encoder" to see how the A & B signals work together. Joe T. Quote Link to comment Share on other sites More sharing options...
bettim Posted January 8, 2012 Author Report Share Posted January 8, 2012 Hi,Joe T. I made program for encoder it is working,right rotation count up left rotation count down but , reading speed is very small. If you have solution for Jazz plc send me. (I need to connect encoder with 500 imp/rot in Jazz plc) Regards Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.