CompoBus/D Communications Card Operations | Chapter 5 | |
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Note With frequency, the speed scale has no effect.
Example 3: Finding the communications data for setting a
Time scale (attribute 1C):
•Matching the acceleration time unit: 1 minute = 60 seconds = 60,000 ms
•Converting acceleration time to minimum unit: Acceleration time / unit = 60,000 / (1 ms x
•Converting communications data to hexadecimal: 7,500 (dec) = 1D4C (hex)
DCommunications Data Reference Example
In this example, the hexadecimal value BB8 that has been read is converted to frequency with the fol- lowing conditions set.
Number of poles |
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Speed scale (attribute 16): 1 |
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• Converting communications data to decimal: | BB8 (hex) = 3,000 (dec) |
•Converting from minimum unit to r/min:
Communications data x unit = 3,000 x (1 r/min x 1/21) = 1,500 (r/min)