Campbell-scientific Sentek EnviroSCAN EasyAG SDI-12 Manual v 3.4 Uživatelský manuál stáhnout pdf (Strana 20)

EnviroSMART & EasyAG SDI-12 Probe Manual

Supported Commands

SDI-12 Commands Supported

The following commands are supported by the EnviroSMART and EasyAG SDI-12 probe interfaces:

Command Name Response

Acknowledge

Active

a<CR><LF>

The probe interface address

aI!

Send

Identification

allccccccccmmmmmmvvvxxxxxxxxxxxx<CR><LF>

Identification information

aAb!

Change Address

a<CR><LF>

The probe interface address

aM!

Start

Measurement

atttn<CR><LF>

Delay (ttt) in seconds and number of

values (n) up to 9

aMn!

Start

Measurement

n in range “1”

- “3”

atttn<CR><LF>

Delay (ttt) in seconds and number of

values (n) up to 9

Note: A response of a0000<CR><LF> is

provided indicating all values are

served by previous Start Measurement

commands (aMn!)

aC!

Concurrent

Measurement

atttnn<CR><LF>

Delay (ttt) and number of values (nn) up

to 16

aCn!

Concurrent

Measurement

n in range “1”

- “9”

atttnn<CR><LF>

Delay (ttt) and number of values (nn) up

to 16

Note: A response of a0000<CR><LF> is

provided indicating all values are

served by previous Start Concurrent

Measurement (aCn!) commands

aDn!

Send Data

n in range “0”

- “9”

Refer to “Data Reading” section

aV!

Start

verification

a0000<CR><LF>

aRn!

Continuous

Measurement

a<CR><LF>

Not supported

Probe interface will respond with its

address

1 2 ... 15 16 17 18 19 20 21 22 23 24 25 ... 29 30

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