Rockwell Automation 1771-QB Linear Pos. - Manual (Page 76)

Interpreting ModuleĆtoĆPLC Data
(READS)
Chapter 6
6Ć15
Figure 6.10
Desired Velocity Format
50006
Desired velocity,
BCD 99.99 ips or 999.9 mmps max
Binary 327.67 ips or 3276.7 mmps max
15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
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Desired Acceleration (words 24 and 25)
The module calculates the desired acceleration once every two milliseconds,
based on the velocity smoothing constant and maximum acceleration specified
for the move. The desired acceleration is a theoretical number representing the
rate of velocity increase that the module wishes to achieve, and not necessarily
the actual rate of acceleration achieved.
Figure 6.11
Desired Acceleration Format
50007
Desired acceleration,
BCD 999.9 ips/s or 9999 mmps/s max
Binary 3276.7 ips/s or 32767 mmps/s max
15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
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Desired Deceleration (words 26 and 27)
The module calculates the desired deceleration once every two milliseconds
based on the velocity smoothing constant and maximum deceleration specified
for the move. The desired deceleration is a theoretical number representing the
rate of velocity decrease that the module wishes to achieve, and not necessarily
the actual deceleration achieved.