7/22/2012 3:17 PM | |
Posts: 95 Rating:
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Hi all, I am facing problem with Hubner Hog 10 D encoder 1024 ppr . It is mounted on a moving machine travel motor to measure the distance travelled by the motor.I am using FM350-1 to read the encoder. Now my encoder, when moving in forward direction, reads value from 0 to 30173 and than it jumps directly from 30173 to -30173 and than it goes from -30173 to 0 and than from 0 to 30173 and visa versa in reverse direction. Frwd -> 0 to 30173 -> -30173 to 0 -> 0 to 30173 -> 0 to 30173 Rev -> 30173 to 0 -> 0 to -30173 -> -30173 to 0 -> 0 to 30173 This is so fast that I am not able to use comparator for 0 value I expected my encoder to read increasing values from 0 till 8 digit value Please help!!!! Regards, JD |
Last edited by: O_Moderator at: 7/23/2012 2:25 PMnew subject after splitting from /tf/WW/en/Posts/17692#top |
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7/22/2012 5:51 PM | |
Posts: 378 Rating:
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Hello, User data length for FM350-1 is 16bit, but you want to count upto 8 digit value requires 32bit data length thus you need to create process alarm for the zero crossing on one of high priority (lower scan time) blocks e.g. OB40, then add to some viriables (data blocks) with larger data length to count upto your requirement. Here is a link for How can you generate a process alarm with the latch function on the "FM350-1" module? Regards, |
7/23/2012 4:54 AM | |
Posts: 95 Rating:
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Thanks desmul24 What info you provided is very valuable, though I understood it little but does this mean that my FM-350-1 is not able to read above 30175 counts??? I cannot increase this count value?? or have I done some wrong connection or settingduethat it is reading only till 30175 counts?? Or is my encoder selection is wrong? Regards, JD |
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