Microprocessor; Temperature Control Microprocessor System; Key Pad; Figure 3- 1 Temperature Control System - Carrier 69NT40-511-300 Operation And Service

3.1 TEMPERATURE CONTROL MICROPRO-
CESSOR SYSTEM
The temperature control Micro-Link 2i microprocessor
system (see Figure 3- 1) consists of a key pad, display
module, control module (controller) and interconnecting
wiring. The controller houses the temperature control
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
TEMPERATURE CONTROL SOFTWARE
CONFIGURATION
SOFTWARE
CONFIGURATION
VARIABLE
(CnF##)
DataCORDER SOFTWARE
CONFIGURATION
SOFTWARE
CONFIGURATION
VARIABLE
(dCF## read only)

MICROPROCESSOR

CONTROL MODULE
OPERATIONAL ALARMS
SOFTWARE (AL<70)
FUNCTION
TO
DISPLAY
CODE (Cd)
OPERATIONAL ALARMS
SOFTWARE (AL>69)
FUNCTION TO
DISPLAY
CODE (dC)

Figure 3- 1 Temperature Control System

SECTION 3
and cargo temperature parameters for future retrieval.
Coverage of the temperature control software begins
with paragraph 3.2. Coverage of the DataCORDER
software is provided in paragraph 3.6.
The key pad and display module serve to provide user
access and readouts for both of the controller functions,
temperature control and DataCORDER. The functions
are accessed by key pad selections and viewed on the
display module. The components are designed to
permit ease of installation and removal.
PRE- -TRIP
DATA
STORAGE
MEMORY
TO
DISPLAY
(Scrollback)
3-1
DISPLAY MODULE

KEY PAD

INTERROGATION
CONNECTOR
DATAREADER
Computer Device
With DataLine
Software
T-285