Hardware reference guide

Intelligent/Special Purpose

35013379 02 October 2007 351

Command 1 and

Command 2

Response

Formats

The following figures show the 3X through 3X+5 response formats.

Command 3,

READ INPUT

COUNTER,

Output Register

Format

(4X = 03XX hex)

The following figure shows the 4X register for Command 3, READ INPUT

COUNTER, output register format.

16151413121110987654321

Configure or

Load Values

Command Byte

16151413121110987654321

3X+5

1 = Field Power Lost

3X+1 to 3X+4 echoes 4X+1 to 4X+4 register contents.

16151413121110987654321

1 = Preset Counter 1

1 = Enable Counter 1

1 = Disable Counter 1

1 = Preset Counter 2

1 = Enable Counter 2

1 = Disable Counter 2

Read Counter Inputs Com-

mand Bits

This document provided by Barr-Thorp Electric Co., Inc. 800-473-9123 www.barr-thorp.com