GE PANDA, Service Manual

Page: 39 / 212

Chapter 1: Functional Description
System Functions
Service Manual 1-15
1.3.6 External Communication
Serial communication is provided though the ThermaLink port. (Refer to Figure 1-9 .) A null modem cable is
required for connection to a PC serial port. Ethernet communications are not used at this time.
A string of ASCII characters will be transmitted over the RS-232 port every 15 seconds ±5 seconds.
The string will be formatted as follows:
Unit Type with version, baby temperature, set temperature, current heater setting, mode, last recoded
weight, saturation, pulse rate, list of alarms, 00(used to note the end of the alarm list), checksum (in
hexadecimal format).
Example 1: Manual Mode with no alarms.
GWRM_1.0.7,36.3,36.5,35,M.1340,0,0,00,0d
Example 2: Baby mode with two alarms
PWRM_1.0.7,36.3,37.1,40,P,1340,0,0,16,22,00,ea
Note: Ethernet communication is not used at this time.
FIGURE 1-9. Thermalink Communication