Publication 1763-RM001C-EN-P - October 2009
Using the High-Speed Counter and Programmable Limit Switch
91
The HSC is extremely versatile; the user can select or configure HSC for
any one of eight (8) modes of operation. (Operating Modes are discussed
later in this chapter. See section HSC Mode (MOD) on page 107). Some of
the enhanced capabilities of the High-Speed Counters are:
•
20 kHz (40 kHz
(1)
) operation
•
High-speed direct control of outputs
•
32-bit signed integer data (count range of ± 2,147,483,647)
•
Programmable High and Low presets, and Overflow and Underflow
setpoints
•
Automatic Interrupt processing based on accumulated count
•
Run-time editable parameters (from the user control program)
The High-Speed Counter function operates as described in the following
diagram.
(1) OS Series B FRN 4 or later
+2,147,483,647 maximum
-2,147,483,648 minimum
Overflow
High Preset
0
Low Preset
Underflow
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