19
FS22DI
OPERATION
S
<2 ms: good
S
<5 ms: acceptable
S
<10ms: poor
S
>10ms: not acceptable
A successful NTP Sync is achieved if the offset between the internal clock of the device
and the NTP server is below 5ms.
The quality of the NTP synchronization can be queried using the SCPI commands (please
refer to section “Synchronization” on page 53 for further details).
3.6.4
Operation
The FS22 - Industrial BraggMETER DI interrogator can be fully controlled using standard
SCPI syntax commands (for a complete command list,
“Communication Protocol Syntax” on page 40
).
All valid answers to sent commands, start with :ACK.
Whenever there is a misspell or a wrong command sent, an error message will be
returned:
:NACK:INVALID COMMAND
That means that the command does not exist. Check if the spelling is correct.
:NACK: COMMAND NOT ACCEPTED AT CURRENT STATUS
It is not possible to execute the command sent at the current status.
Ask the current status of the interrogator (:STAT?) and confirm with scheme from
to see how to change it.
:NACK: '?' MUST BE THE LAST CHARACTER
The sent command should have a '?' at the end of the command string.
Important
Before using the provided LabVIEW(TM) examples on a PC, make sure the Regional and
Language options (in standards and formats) are defined as dot for decimal symbol,
comma for digit grouping symbol and dash for date separation.
Operational States
The FS22 - Industrial BraggMETER DI interrogator has five operational states:
The error state corresponds to a malfunction of the optoelec
tronic module of the FS22 - Industrial BraggMETER DI interroga
tor. The system can recover from this state by resetting.
0 error
