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Note With frequency, the speed scale has no effect.
Example 3: Finding the communications data for setting a one-minute acceleration time with the follow-
ing condition set.
Time scale (attribute 1C): –3
• 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 1/2
–3
) = 7,500
• Converting communications data to hexadecimal: 7,500 (dec) = 1D4C (hex)
D Communications 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 (o1–03): 4
Speed scale (attribute 16): 1
• 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 1/2
1
) = 1,500 (r/min)
CompoBus/D Communications Card Operations Chapter 5