Rockwell-automation 1771-QB Linear Pos. Bedienungsanleitung PDF herunterladen (Seite 76)

Interpreting ModuletoPLC Data

(READS)

Chapter 6

615

Figure 6.10

Desired

elocity 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

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

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.

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Rockwell-automation 1771-QB Linear Pos. Bedienungsanleitung Seite 76