Campbell Scientific CR23X Micrologger - Manual (Page 25)

CR23X MICROLOGGER OVERVIEW
OV-15
Display Explanation
HELLO
On power-up, the CR23X
displays "HELLO" while it
checks the memory
after a few seconds delay
1664 Kbytes The size of the machine's total
memory memory
When the CR23X is turned on, it tests the FLASH
memory and loads the current program to RAM.
After the program compiles successfully, the
CR23X begins executing the program. If a key is
pressed while the CR23X is testing memory
(“HELLO” is on the display), there will be a 128
second delay before compiling and running the
program. This can be used to edit or change the
program before it starts running.
In order to ensure that there is no active
program in the CR23X, load an empty program
using the
D Mode:
Display Will Show:
Key (ID:Data) Explanation
∗ Mode Enter mode
D 13:Enter Command Enter D Mode
00
7 13: 7 is command to
00 7 load program from
flash
A 07:Program ID Execute command
00 7, CR23X is ready
for program
number
0 07:Program ID Load Program 0
00 00 (empty program)
A Execute program
load, after a short
wait, the display
will show
Prog. operation Indicating that the
complete command is
complete.
OV5.1 SAMPLE PROGRAM 1
EDLOG Listing Program 1:
*Table 1 Program
01:
5.0 Execution Interval (seconds)
1: Panel Temperature (P17)
1:
1 Loc [ CR23XTemp ]
2: Do (P86)
1:
10 Set Output Flag High
3: Sample (P70)
1:
1 Reps
2: 1 Loc [ CR23XTemp ]
In this example the CR23X is programmed to
read its panel temperature (using a built in
thermistor) every 5 seconds and to send the
results to Final Storage.
Display Will Show:
Key (ID:Data) Explanation
∗ Mode Enter mode.
1 Mode 01 Go To Enter Program
0000 Table 1.
A Scan Interval Advance to
execution
+0000 interval (In seconds)
5 Scan Interval Key in an execution
+0.0000 5 interval of 5 seconds.
A 01:P00 Enter the 5 second
execution interval
and advance to the
first program
instruction location.
1 7 01:P00 Key in Instruction 17
17 which directs the
CR23X to measure
the panel
temperature in
degrees C. This is
an Input/Output
Instruction.
A Panel Temp Enter Instruction 17
01:Loc and advance to the
0000 first parameter.
1 01:Loc The input location to
0000 1 store the
measurement,
location 1.