Using Rs-232C Communications; Rs-232C Operate Mode - GE HumiLab Operator's Manual

Using RS-232C communications

RS-232C
operate mode
Status Flag Description
ALARM
CONTROL
BALANCE
SERVICE
COOL
HEAT
SHUTDOWN
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RS-232C communications can be divided into two sections —
Operate mode and Reprogramming mode. See Appendix B for a
complete discussion of the Re-programming mode used with the
Electronics Module.
In Operate mode the RS-232C port outputs the following data.
- DP C=XXXX
- DP F=XXXX
- RH=XXXX
- TMP C=XXXX
- TMP F=XXXX
The data output by the Electronics Module can be modified in two
ways. First, the user can customize the data output to some subset
of the above. Second, the user can type various letters to obtain
immediate output of a single parameter. See the Re-programming
mode in Appendix B for details.
In addition to the output data, the Electronics Module will also
output various status flags as shown below.
The alarm relay is activated. Disabling the alarm relay will
also disable this prompt.
The Electronics Module is in control at a dew/frost point.
The Electronics Module is in PACER or AUTO balance
mode.
The system optics require service, cleaning, or adjustment.
The sensor is in maximum cooling mode.
The sensor is in maximum heating mode.
The Electronics Module has shut down because of exces-
sive temperature.
Some subset of these prompts will appear after the output data.
They will be displayed with every system update as long as they are
active. Each prompt is followed by a carriage return.
Appendix C — Configuring the RS-232 Interface