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Configuration commands – Welch Allyn LC101 CO2 Module - User Manual User Manual

Page 29

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LC101 CO

2

Module OEM Implementation Manual

Section 4 - Host/Module Communications

Welch Allyn OEM Technologies

Confidential

Page 29

Configuration Commands

Configuration commands instruct the Module to temporarily modify specific default settings for
measurement criteria. A new pump flow rate may also be specified. The host does not have to
command the Module into the unprotected mode prior to issuing a new flow rate command.

A description of these commands is included in the following table.

Host Command

Description

Change CO

2

waveform update rate

Allows the host to specify how often the Module sends a CO

2

wave-

form data packet. The Module generates a CO

2

measurement every

31msec. The maximum update rate is 31 msec. The host may pro-
gram the rate to xx increments, where xx is the number of 31msec
increments per packet.

where xx (ASCII) defines the CO

2

waveform update rate

based on the number of 31msec increments.

xx range

00h to FFh

xx default 01h, 31 msec interval
Examples:

send a CO

2

waveform data packet every 31 msec (1

× 31

msec)

send a CO

2

waveform data packet every 155 msec (5

×

31 msec)

send a CO

2

waveform data packet every 7.9 seconds

(255

× 31 msec)

stop sending waveform data

Change breath data clear rate

Allows the host to specify how long the Module waits for a new
breath data packet before clearing the breath data (ETCO

2

= 00h /

RR = 00h / InsCO

2

= 00h).

where xx (ASCII) defines the “no breath” timeout in sec-
onds

xx range 10 to 60 s (0Ah to 3Ch)

xx default 0Fh, clear breath data after 15 s of “no breath”
Example:

clear the breath data after 10 seconds of “no breath”