Labconco FreeZone Bulk Tray Dryer 78060 Series - Manual (Page 24)

Chapter 6: Using the RS232 Receptacle
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The data content of the RS232 message from the Bulk Tray Dryer is as follows:
Sample output:
Columns 1-4 Run, Stop, or Open Tells overall operating status where “open” indicates door
open
Columns 7-11 T = 162
Running time in minutes Time in minutes since “run” button was pressed
Columns 14-19 Set Point = -10 Shows tray set point temperature set by user
Columns 22-29 T1 = -9 Shows Tray 1 actual temperature or ***** if no tray
temperature sensor is plugged in
Columns 32-39 T2 = -9 Shows Tray 2 actual temperature or ***** if no tray
temperature sensor is plugged in
Columns 42-49 T3 = -9 Shows Tray 3 actual temperature or ***** if no tray
temperature sensor is plugged in
Columns 52-59 T4 = ***** Shows Tray 4 actual temperature or ***** if no tray
temperature sensor is plugged in
Columns 62-69 T5 = ***** Shows Tray 5 actual temperature or ***** if no tray
temperature sensor is plugged in
There are several commercially available software packages, which can read
RS232 data and enter the data into a computer program such as a word processor
(to create a text file) or spreadsheet (to tabulate and plot the data). Consult your
laboratory supply dealer regarding the latest software available.
The following describes how to use an IBM compatible computer with Hyper
Terminal™ software (included with Windows® 95, 98, XP or 2000 operating
systems) to collect the RS232 data from your Freeze Dryer:
1. Make sure that the Freeze Dryer is properly connected to the communication
port on the computer.
2. Open Hyper Terminal™ software.
i) Windows® 95 or 98 use:
START/PROGRAMS/ACCESSORIES.
ii) Windows® 2000 or XP use:
START/PROGRAMS/ACCESSORIES/COMMUNICATIONS
RUN, T5 = 162, SP= -10, T1 = -9, T2 = -9, T3 = -9, T4 = *****, T5 = *****