Carrier 69NT40-541-505, Operation And Service Manual, Page: 31 / 143

4–1 T-368
SECTION 4
MICROPROCESSOR
4.1 TEMPERATURE CONTROL MICROPROCES-
SOR SYSTEM
The temperature control Micro-Link 3 microprocessor
system (see
Figure 4.1 ) consists of a keypad, display
module, control module (controller), and interconnect-
ing wiring. The controller houses the temperature con-
trol software and the DataCORDER Software. The
temperature control software functions to operate the
unit components as required to provide the desired
cargo temperature and humidity.
The DataCORDER software functions to record unit
operating parameters and cargo temperature parameters
for future retrieval. Coverage of the temperature control
software begins with
Section 4.2 . Coverage of the Data-
CORDER software is provided in Section 4.8 .
The keypad and display module serve to provide user
access and readouts for both of the controller func-
tions, temperature control, and DataCORDER. The
functions are accessed by keypad selections and
viewed on the display module. The components are
designed to permit ease of installation and removal.
Figure 4.1 Temperature Control System
TO
DISPLAY
CONTROL MODULE
DISPLAY MODULE
KEYPAD
CONFIGURATION
SOFTWARE
CONFIGURATION
VARIABLE
(CnF##)
TEMPERATURE CONTROL SOFTWARE
ALARMS
Pre-trip
INTERROGATION
CONNECTOR
Computer Device
With DataLINE
Software
DataCORDER SOFTWARE
OPERATIONAL
SOFTWARE
FUNCTION
CODE (Cd)
TO
DISPLAY
CONFIGURATION
SOFTWARE
CONFIGURATION
VARIABLE
(dCF## read only)
ALARMS
DATA
STORAGE
MEMORY
OPERATIONAL
SOFTWARE
FUNCTION
CODE (dC)
TO
DISPLAY
(Scrollback)
Operation/Config.
PCMCIA CARD
Data Bank
PCMCIA CARD
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