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Theory of Operation
Volume Reporting
(continued)
1.
Robotic controller sets MEASURE VOLUME
to
LOW after the cycle is complete.
2.
PrecisionFlo module stops measuring volume
dispensed.
3.
Robot controller sets the VOLUME REQUEST
signal HIGH.
4.
PrecisionFlo module places the first 5 bits (B0–B4)
of volume information on the data bus
.
5.
PrecisionFlo module sets the VOLUME VALID
signal HIGH.
6.
Robotic controller reads the data.
7.
Robotic controller sets the VOLUME REQUEST
signal LOW.
8.
PrecisionFlo module sets the VOLUME VALID
signal LOW.
9.
Robotic controller sets the VOLUME REQUEST
signal HIGH.
10. PrecisionFlo module places the second 5 bits
(B5–B9) on the data bus
.
11. PrecisionFlo module sets the VOLUME VALID
signal HIGH.
12. Robotic controller reads the data.
13. Robotic controller sets the VOLUME REQUEST
signal LOW to indicate volume data has been
read.
14. PrecisionFlo module sets the VOLUME VALID
signal to LOW.
15. After volume is reported, if a fault was detected
during the cycle, the PrecisionFlo module places
the last fault code on the data bus. (See Fault
Handling on page 58.)
16. When the robot sets the MEASURE VOLUME line
high to begin the next cycle, the PrecisionFlo
module discards previously stored volume data.
