Allen-Bradley Micro800 General Instructions Manual page 317

HPSetting
Parameter
HSCApp.HPSetting
Upper setpoint (in counts) that defines when the HSC sub-system generates an
interrupt.
The data loaded into the high preset must be less than or equal to the data resident
in the overflow (HSCAPP.OFSetting) parameter or an HSC error is generated.
LPSetting
Parameter
HSCApp.LPSetting
Lower setpoint (in counts) that defines when the HSC sub-system generates an
interrupt.
•
The data loaded into the low preset must be greater than or equal to the
data resident in the underflow (HSCAPP.UFSetting) parameter or an HSC
error is generated.
•
If the underflow and low preset values are negative numbers, the low preset
must be a number with an absolute value smaller than the underflow.
OFSetting
Parameter
HSCApp.OFSetting
Overflow setting that defines the upper count limit for the counter.
•
If the counter's accumulated value increments above the value specified in
OFSetting, an overflow interrupt is generated.
•
When the overflow interrupt is generated, the HSC sub-system resets the
accumulator value to the underflow value and the counter continues
counting from the underflow value (counts are not lost in this transition).
OFSetting values must be:
•
Between -2,147,483,648 and 2,147,483,647.
•
Greater than the underflow value.
•
Greater than or equal to the data resident in the high preset
(HSCAPP.HPSetting) or an HSC error is generated.
Rockwell Automation Publication 2080-RM001D-EN-E - February 2015
High-Speed Counter (HSC) instructions
Data type User program access
DINT read/write
Data type User program access
DINT read/write
Data type User program access
DINT read/write
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