Allen-Bradley MicroLogix 1000 User Manual

Preface
MicroLogix 1000 Programmable Controllers User Manual
12–2
About the High-Speed Counter Instructions
The high-speed counter instructions used in your ladder program configure, control,
and monitor the controllers’ hardware counter. The hardware counter’
s accumulator
increments or decrements in response to external input signals. When the
high-speed counter is enabled, data table counter C5:0 is used by the ladder program
for monitoring the high-speed counter accumulator and status. The high-speed
counter operates independent of the controller scan.
When using the high-speed counter, make sure you adjust your input filters
accordingly. See page A–7 for more information on input filters.
Before you learn about these instructions, read the overview that follows on the next
page. Refer to page 2–24 for information on wiring your controller for high-speed
counter applications.
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Allen-Bradley MicroLogix 1000 Specifications

General

Communication Ports	RS-232
Power Supply	24V DC or 120/240V AC
Programming Software	RSLogix 500
Manufacturer	Allen-Bradley
Category	Controller
Series	MicroLogix
Programming Language	Ladder Logic
Input Voltage	24V DC or 120/240V AC
I/O Points	10 to 32 points
Processor Type	8-bit
Operating Temperature	0…55 °C (32…131 °F)
Processor	8-bit