Terumo CDI 550 Operator's Manual page 156

The start_adr indicates the starting address of the packet (should be pointing to the
0x02 STX value). The count indicates how many bytes, and includes the count of
all parts of the packet up to but not including the CRC field. The function returns the
CRC value, which shall be converted to a two-character hex-encoded ASCII value for
inclusion in the packet.
Analyte Data Information.
When the system sends an analyte data packet while in Operate mode, the data por-
tion of the packet will be of a specific format:
HH:MM:SS<tab>AABCD..D<tab>AABCD..D<tab>...<tab>
The entire analyte packet is in ASCII, and fields are tab-delimited. The first field indi-
cates the time in military format that the data was recorded on the CDI System 550.
Data is recorded every 6 seconds in the CDI System 550, so it is possible to get the
same record more than once if requesting a packet "<" every 6 seconds.
The analyte information follows, using the following notation:
AA − Analyte descriptor − hex-encoded ASCII value indicating which analyte the value
is for. Use the following table for definitions:
Analyte
Arterial pH
Arterial CO
Arterial O
Arterial Temp
Arterial SO
Arterial
Arterial Base Excess
Potassium (K
Consumption ( O
Venous pH
Venous CO
Venous O
Venous Temp
Venous SO
Venous
Venous Base Excess
Hematocrit
Hemoglobin
Arterial Flow
Body Surface Area
Analyte Code
00
01
2
02
2
03
04
2
HCO
05
3
06
+
07
)
08
)
2
09
0A
2
0B
2
0C
0D
2
HCO
0E
3
0F
10
11
12
13
communication with other devices C-25