User's Manual

Performing Advanced Functions

I/O D Cabling 3

SDI count

SDI offset

SDI available

SDI data block

Fig. 18: Frame 60,61 (left) and 62 (right) description

The frame is similar to the standard DATA frame, but has the SDI sensor values

appended after the standard analog values. The frame type 60 contains SDI-12

data only.

SDI-12 specific parameters are explained below:

• SDI count —the number of SDI values following in the SDI data block.

• SDI offset — the offset in the SDI-12 frame. Usually it is 0 (no offset is

used).

• SDI available —the number of SDI-12 sensor values effectively

returned. The difference between the SDI count and SDI available

indicates missing sensors (down or damaged). Usually these two values

are equal.

• SDI values —a number of SDI-12 data blocks, each consisting of four

values:

• SDI address

• SDI method

• SDI index

• SDI value (floating point)

You can also see the example below.

For additional information about the significance of the SDI address, method, and

index, please refer to the SDI-12 standard specification (http:// www.sdi-12.org).

The digibyte is similar to the DATA command:

SC Dig6 Dig5 Dig4 Dig3 Dig2 Dig1 Dig0

b7 b0

SC-Battery Charge (0-off, 1-on) Dig n – Digital I/O n

Fig. 19: The Digibyte

The remote version is limited to a single frame.

REMARKS GET only.

REMOTE Yes.

XAMPLE 12800 datasdi

12800 datasdi 16 5 2003 20 14 49 44 60 255 255 127 87 9 0 9 3

0 0 74.379401 3 0 1 68.117003 3 0 2 58.832397 3 0 3 51.611795

3 0 4 38.346400 3 0 5 19.800799 3 0 6 14.895999 3 0 7

3.553500 3 0 8 0.037200 2953 0