High-speed counter reset (res), Programming – Rockwell Automation 1761 MicroLogix 1000 Programmable Controllers User Manual

Page 235

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Using High-Speed Counter Instructions

12–21

High-Speed Counter Reset (RES)

The RES instruction allows you to write a zero to the hardware accumulator and
image accumulator.

The Counter referenced by this instruction has the same address as the HSC
instruction counter and is entered as C5:0.

Operation

Execution of this instruction immediately:

•

removes pending high-speed counter interrupts

•

resets the hardware and instruction accumulators

•

reset the PE, LS, OV, UN, and DN status bits

•

loads the instruction high preset to the hardware high preset (if the high-speed
counter is configured as an up counter)

•

resets the IL, IH, IN, or IV status bits

You can have more than one RES instruction in your program.

Programming

Execution Times

(µ

sec

)

when:

True

False

51.00

6.00

RES

C5:0

)

)

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