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Welch Allyn Duet CO2 Module - User Manual User Manual

Page 32

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Duet CO

2

Module OEM Implementation Manual

Page 32

Confidential

Welch Allyn OEM Technologies

Host Command

Description

Change breath data update rate

Allows the host to specify how often the module sends a breath data
packet.

where xx (ASCII) is converted to a 8 bit binary
number (yyzz zzzz) with yy defining how often the
breath data is updated.

If yy = 00 binary, Breath data packet update rate is defined by zzzzzz,

where zzzzzz is in tenths of seconds. The six lower
bits = (seconds x 10). Odd values are rounded up
to even values.

If yy = 01 binary, Breath data is sent on every breath (zzzzzz =

doesn’t matter).

Exception: If the “no breath” condition occurs, data is

sent at a rate defined by the “no breath timeout”
command ().

If yy = 10 binary, Breath data is sent only when the data changes

(zzzzzz = doesn’t matter).

Exception: If after 15 seconds the breath data has not

changed, data is sent after the next breath. This
does not guarantee a 15 second update. However,
if the “no breath” condition has occurred, the “no
breath” timeout timer takes precedence.

Default is yy = 10 or xx = 80

If yy = 11 binary, Not defined.

send a breath data packet at .6 sec interval (odd
values rounded up0

send breath data packet every breath

send breath data packet every the data changes

Special case:

no breath data packet sent (Note: Continuous CO

2

mode would use this command.)