Teledyne 6712SR, Installation And Operation Manual

Page: 144 / 224

6712SR Refrigereated Sampler
Section 7 Remote Operation
7-4
Take a Sample – This directs the sampler to take a sample. The
command specifies how much volume to take, and which bottle to
place the sample in. The sampler responds by taking a sample
and returning a status string that reports the new status. A
command to take a sample would appear as:
BTL,2,SVO,100,CS,1039
This example instructs the sampler to place the distributor arm
over bottle 2 (
BTL,2
) and take a 100 ml sample (
SVO,100
).
While most settings of the sampler program (start times,
enables, distribution schemes, etc.) are ignored when responding
to external commands, the sampler does rely on two program set-
tings that “configure” the sampler. These settings are:
• Number of Bottles–is used to determine the distributor
arm position and the acceptable range for the
BTL
values.
• Suction Line Length–Used with liquid detection to
deliver correct sample volumes according to the
SVO
value.
Send Status – When receiving this command, the sampler
returns a data string that identifies the controller and lists its
current status.
The status is received as pairs of comma-separated identifiers
and values. A complete description of each pair is listed below.
MO,6712,
is the model number of the sampler.
ID,2424741493,
is the sampler’s unique ID number.
TI,35523.50000,
is the sampler’s current time.
STS,1,
is the sampler’s current status. The possible states
are:
1
= WAITING TO SAMPLE.
4
= POWER FAILED (for short time after power is
restored).
5
= PUMP JAMMED (must be resolved before continu-
ing).
6
= DISTRIBUTOR JAMMED (must be resolved before
continuing).
9
= SAMPLER OFF.
12
= SAMPLE IN PROGRESS.
20
= INVALID COMMAND. Possible causes may be:
· identifier code is not supported.
· bottle requested is not in current configuration
· sample volume requested is outside its range
(10 - 9990 ml)
· day (Set_Time) must be 5 digits and more
recent than 1977
21
= CHECKSUM MISMATCH.
22
= INVALID BOTTLE. (bottle requested is not in the
current configuration)