Campbell Scientific CR510 Basic Datalogger - Manual (Page 25)

CR510 OVERVIEW
OV-13
Wait a few seconds:
01:21.423 The CR510 has read the
sensor and stored the
result again. The internal
temp is now 21.423
o C.
The value is updated
every 5 seconds when
the table is executed. At
this point the CR510 is
measuring the
temperature every 5
seconds and sending the
value to Input Storage.
No data are being saved.
The next step is to have
the CR510 send each
reading to Final Storage.
(Remember, the Output
Flag must be set first.)
∗ 1 01:0000 Exit
∗
6 Mode. Enter
program table 1.
2 A 02:P00 Advance to 2nd
instruction location (this
is where we left off).
8 6 02:P86 This is the DO instruction
(a Program Control
Instruction).
A
01:00 Enter 86 and advance to
the first parameter (which
will specify the command
to execute).
1 0 01:10 This command sets the
Output Flag. (Flag 0)
A 03:P00 Enter 10 and advance to
third program instruction.
7 0 03:P70 The SAMPLE instruction.
It directs the CR510 to
take a reading from an
Input Storage location
and send it to Final
Storage (an Output
Processing Instruction).
A 01:0000 Enter 70 and advance to
the first parameter
(repetitions).
1 01:1 There is only one input
location to sample;
repetitions = 1.
A 02:0000 Enter 1 and advance to
second parameter (Input
Storage location to
sample).
1 02:1 Input Storage Location 1,
where the temperature is
stored.
A 04:P00 Enter 1 and advance to
fourth program
instruction.
∗
00:00 Exit Table 1.
0 LOG 1 Enter
∗
0 Mode, compile
program, log data.
The CR510 is now programmed to measure the
internal temperature every 5 seconds and send
each reading to Final Storage. Values in Final
Storage can be viewed using the
∗
7 Mode.
Display Will Show:
Key (ID:Data) Explanation
∗ 7 07: 13.000 Enter
∗
7 Mode. The
Data Storage Pointer
(DSP) is at Location 13
(in this example).
A 01: 0102 Advance to the first
value, the Output Array
ID. 102 indicates the
Output Flag was set by
the second instruction in
Program Table 1.
A 02: 21.23 Advance to the first
stored temperature.
A 01: 0102 Advance to the next
output array. Same
Output Array ID.
A 02: 21.42 Advance to 2nd stored
temp, 21.42 deg. C.
There are no date and time tags on the data.
They must be put there with Output Instruction
77. Instruction 77 is used in the next example.
If a terminal is used to communicate with the
CR510, Telecommunications Commands
(Section 5) can be used to view entire Output
Arrays (in this case the ID and temperature) at
the same time.