RADIOMETER TCM3 - Page 86

2. TCM3
TCM3 and TCM30 Service Manual
Serial Output
Introduction
Category A
The transmission parameters are:
2400 Baud
7 bits/character
Odd parity
2 stop bits
The output data consists of ASCII characters: Upper case letters, numerals 0 to 9,
decimal points, and line terminators <LF>, <CR> and <NUL>.
The data are organised in data-lines divided into 4 categories:
A Measurement Data and dummy lines
B Status Messages
C Events
D Trend memory dump (RUN 22 onwards only)
Any line is initiated by a 2-letter line-ID followed by a number of 2-letter field-IDs
with possible numerals specifying the parameter value.
These lines are transmitted every 1.966 seconds. When the monitor is in state 1, 2, *
3 or 4 (see the state diagram in the paragraph “Serial Input”), and when trend
memory data are viewed as well as during Xorp during trend memory dumping,
dummy lines (DU) are transmitted. Otherwise measurement data are transmitted.
Measurement Data (DA Package)
Line ID: DA
Field IDs: MO Measured pO, (XXX.Y) mmHg/(XX.YY) kPa
MC Measured pCO, (KXX.Y) mmHg/(XX.YY) kPa
TE Temperature (KX.Y) °C
MW Heating power (XXX) MW
TI Site timer (XX. Y Y) hours.minutes
Before stability checks during calibrations, the fields MO and MC are omitted. If
the monitor is measuring only pO, or pCO,, the irrelevant field is omitted. The
field TI is only included when the site-timer is active, i.e. during state 8, Measure,
State 9, In-vivo Measure, and state 11 and 11a, Prepare In-vivo Measure.
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