Sea-Bird Electronics SBE 38 User Manual download pdf (Page 16)

Section 4: Deploying and Operating RS-232 SBE 38

Command Descriptions

This section describes commands and provides sample outputs.

See Appendix IV: Command Summary for a summarized command list.

When entering commands:

• Input commands to the SBE 38 in upper or lower case letters and register

commands by pressing the Enter key.

• The SBE 38 sends ? CMD if an invalid command is entered.

• If the system does not return an S> prompt after executing a command,

press the Enter key to get the S> prompt.

Status Command

DS Display status and setup parameters.

Equivalent to Status on Toolbar.

Description in example includes, where applicable,

command used to modify parameter.

Setup Commands

Interface=x x=232: Set interface to RS-232.

x=485: Set interface to RS-485. See Appendix III:

RS-485 Interface for all details.

Baud=x x= baud rate (1200, 2400, 4800, 9600).

Default 9600.

Format=x x=C: Output converted data (°C).

x=R: Output raw data (counts).

Digits=x x= number of digits (0 – 6) to right of decimal point

for converted temperature (°C). Applicable only if

Format=C.

NAvg=x x= number of A/D cycles to average per sample

(1 – 127).

Time between samples (seconds)

= (0.133 * NAvg) + 0.339

(Time between samples for continuous sampling;

minimum time required for each polled sample.)

AutoRun=x x=N: Wait for a command when power is applied.

x=Y: Start continuous sampling automatically when

power is applied.

Example: (user input in bold).

S>DS

SBE 38 V 1.4 S/N = 0090 (firmware version, serial number)

NAVG=1 (number of A/D cycles to average for each sample [NAvg=])

Not sampling data (sampling status)

Automatically start sampling on power up (sampling start-up mode [AutoRun=])

Default interface is RS-232 (RS-232 or RS-485 interface [Interface=])

Note:

If the voltage is below 6.5 volts, the

following displays in response to DS:

WARNING: LOW BATTERY VOLTAGE!!

Note:

The SBE 38’s baud rate (set with

Baud=) must be the same as

SEATERM’s baud rate (set in

Configure menu).

Note:

After you send AutoRun=Y, to start

sampling immediately:

• Turn power off and then on again,

• Send Go.

Note:

The SBE 38 transmits data after it

has completed the previous sample

and before it starts the next sample.

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Sea-Bird Electronics SBE 38 User Manual Page 16

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