Allen-Bradley micrologix 1500 Reference Manual

Publication 1762-RM001C-EN-P
Using the High-Speed Counter 5-3
The HSC is extremely versatile; the user can select or configure each 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
5-16). Some of the enhanced capabilities of the High-Speed Counters are:
•
20 kHz 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.
+2,147,483,647 maximum
-2,147,483,648 minimum
Overflow
High Preset
0
Low Preset
Underflow

Allen-Bradley micrologix 1500 Specifications

General

Processor Type	16-bit
Programming Language	Ladder Logic
Mounting	DIN rail or panel mount
Programming Software	RSLogix 500
Communication Ports	RS-232
Power Supply	24V DC
Operating Temperature	0°C to 55°C (32°F to 131°F)
Controller Type	Programmable Logic Controller (PLC)