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Welch Allyn Duet CO2 Module - User Manual User Manual

Page 35

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Duet CO

2

Module OEM Implementation Manual

Welch Allyn OEM Technologies

Confidential

Page 35

STATUS (bits 7, 6, 5 )

MODE see below

bit 7*

bit 6

bit 5

bit 4

bit 3

bit 2

bit 1

bit 0

Status X, Mode x

SXx

hrdwr for ms

(in 1, out 0)

hrdwr for ss

(in 1, out 0)

module in

(ss 1, ms 0,)

8

4

2

1

8

4

2

1

S 0x

0

0

0

0

0

x

x

x

S 2x

0

0

1

0

0

x

x

x

S 4x

0

1

0

0

0

x

x

x

S 6x

0

1

1

0

0

x

x

x

S 8x

1

0

0

0

0

x

x

x

S Ax

1

0

1

0

0

x

x

x

S Cx

1

1

0

0

0

x

x

x

S Ex

1

1

1

0

0

x

x

x

* to set bit 7-both the mainstream sensor and mainstream stick must be present

**bits 3 & 4 are always zero as there are only 5 Modes (values 6 - 31are undefined)

Mode Table

Mode

Status x, Mode X

bit 2

bit 1

bit 0

SxX

(4)

(2)

(1)

Standby

S x1

0

0

1

Warm-up

S x2

0

1

0

Measurement

S x3

0

1

1

Autorun

S x4

1

0

0

Fault

S x5

1

0

1

Status Response Message Byte

yy>

where

yy = Status Message

(2Hex digits = 2 ASCII characters)

Status message byte (yy) contains

§ generic status messages (00h – 06h)

§ fault status messages (10h – 85h)

Refer to the Status Message Code Table at the end of this section for message descriptions. More
detailed information about fault messages is also available in the Appendix - Error Messages &
Recovery.