Campbell TDR200, Инструкция по эксплуатации

Страница: 48 / 53

Appendix D. Terminal Commands
D-3
D.1.4.1 Error Response
Error responses begin with a CR and LF and are of the form: \r\nError: [error].
For example, “\r\nError: Initialization in progress”
Possible errors:
•
Initialization in Progress – returned when a command is received
while the TDR200 is going through initialization.
•
Measurement in Progress – returned when a command is received
while the TDR200 is performing a measurement.
• Command Not Recognized – returned when the command given is not
recognized by the TDR200.
•
Value out of Range – returned when the input parameter is out of
range.
• Undefined Value – returned when there is an error in the input
parameter.
•
Initialization Failed – returned if the TDR200 initialization failed.
• Unknown Internal
D.1.4.2 Ack Response
Ack responses are returned by the sensor in response to commands that set a
parameter in the device. Ack responses begin with a CR and LF and are of the
form: \r\n>[space][command]. For example, the response to SPL 0.3\r\n is
“\r\n> SPL”. Refer to Appendix D.2 ,
Command Usage and Responses
(p. D-3)
,
for specifics on the responses to each command.
D.1.4.3 Value Response
Value responses are returned by the sensor in response to commands that ask
for a value or set of values from the device. Value responses begin with a CR
and LF and vary based on the command. Refer to Appendix D.2 , Command
Usage and Responses
(p. D-3)
, for specifics on the responses to each command.
D.2 Command Usage and Responses
SVP – Set Vp Value
Usage: SVP[space][value]\r\n – range of value = [0.10 – 1.0]
Response: \r\n>[space]SVP
SNA – Set Number of Averages
Usage: SNA[space][value]\r\n – range of value = [1 – 128]
Response: \r\n>[space]SNA
SNP – Set Number of Points
Usage: SNP[space][value]\r\n – range of value = [20 – 10112]
Response: \r\n>[space]SNP