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Found 2 results

  1. Hello all, I have an 11 bit absolute rotary encoder that outputs in gray code. Here is datasheet on it: https://cdn.automationdirect.com/static/specs/encodermda.pdf This is needed for determining the position of the shaft on an engine. I am fairly new to Unitronics and Visilogic. I have a V700 with the V200-18-E3XB snap on. I have looked at other answers on this topic and have created a ladder diagram based on this format: http://www.plcdev.com/using_ladder_logic_for_gray_code_conversion However, I am still stuck when it comes to getting the binary to decimal and then being able to read the position output from the encoder on the HMI. I am a college student working on my senior capstone. Any and all help is appreciated. Thanks, Robby
  2. I'm trying to write values and I'm not sure what the binary WRITE message format is, in relation to the READ message format. I couldn't find this answered in the PDF or on the forums yet. I read a summary in the PDF that byte 12 should be changed to 68 and the write values should be appended to byte 32 (which confused me further as that's after the footer checksum). This is what I have for READ: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 | 24 25 26 27 28 29 | 30 31 32 stx-------------- id FE 01 00 00 00 cn 00 specific--------- lengt chksm | numbr ot FF addr- | chksm ex What would be the correct format for WRITE?
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