INFICON LDS3000 Modular Leak Detector Interface description - Manual (Page 18)

18 LDS1000 Protocol
3.2.2 Status Requests
Besides the main functions, there exist a variety of request commands for outputting
the status which reflect the current state of the LDS3000.
For example: "S 2<cr>". The LDS3000 replies by: "00000110<cr>", for example. This
means that the LDS3000 is in the "Measure" mode.
Status Information:
Meaning Representation
S2
Instrument status
(number)
xxxx
xxxx
Byte 0
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
Byte 6
BYTE 7
(always 8 characters) (Byte 0
right)
0 = VAC 1 = SNIFF
always 0
0 = STANDBY 1 = MEASURE
0 = CAL inactive 1 = CAL active
refers to external calibration 0 =
STANDARD 1 = DYNAMIC
--
ACCELERATION
FAIL
S3 Relay status xxxx xxxx (always 8 characters) (Byte 0 first)
Byte 0: < TRIG 1
Byte 1: < TRIG 2
Byte 2: < TRIG 3
Byte 3: < TRIG 4
Byte 4: Ready
Byte 5: always 0
Byte 6: CAL-REQUEST
Byte 7: no ERROR
S4 Exceeding of
measurement range
limits (leak rate) Useful when leak rates are uueried through the
command G1.
0 - within the measurement range
1 - Underrange. The actual leak rate is below the
output value. This may occur in particular after
activating the Zero function or when restricting
the measurement range through "MANUAL".
2 - Overrange
S6 Key switch status
0 - Key switch defective
1 - No key
2 - Key 1
3 - Key 2
4 - Key 3
S10 Current error
0 - no errorr / warning > 0 otherwise error
number (not yet acknowledged). See TH ???
Chapter ????. If the error is no longer present,
the message may be erased through "CLEAR".
S12 External CAL status
Is used to monitor the calibration process with
an external calibrated leak. See also TH ???
Chapter ???.
0 - inactive
1 - active; calibration is running at the moment.
2 - "Close" The external calibrated test leak
must be closed and acknowledged through
CAL after the signal has stabilised.