DO2 INSTRUCTIONS
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// note:
2.01
will change to reflect current
// firmware revision
// ssssssssss = device serial #
//*** Acknowledge Active, Address Query
<a>! <a><cr><lf>
?! <a><cr><lf>
//*** Change Address
<a>A<b>! <b><cr><lf>
// change address from <a> to <b>
//*** Request measurement
<a>M! <a>
0045
<cr><lf>
// request all measurements
<a>D0! <a>
+23.1374+14.9829+12.1616+3.9829
<cr><lf>
// read: temperature (on board),
// pressure
// power
// DO
<a>D1! <a>
+19.1374
<cr><lf>
// read: temperature (on probe)
//*** Request measurement with CRC
<a>MC! <a>
0045
<cr><lf>
// request all measurements w/CRC
<a>D0! <a>
+23.1374+14.9829+12.1616+3.9829
{
crc
}<cr><lf>
// read: temperature (on board),
// pressure
// power
// DO
<a>D0! <a>
+19.1374
{
crc
}<cr><lf>
// read: temperature (on probe)
//*** Concurrent measurement
<a>C! <a>
0045
<cr><lf>
// request all measurements
<a>D0! <a>
+23.1374+14.9829+12.1616+3.9829
<cr><lf>
// read: temperature (on board),
// pressure
// power
// DO
<a>D0! <a>
+19.1374
<cr><lf>
// read: temperature (on probe)
//*** Concurrent measurement with CRC
<a>CC! <a>
0045
<cr><lf>
// request all measurements w/CRC
<a>D0! <a>
+23.1374+14.9829+12.1616+3.9829
{
crc
}<cr><lf>
// read: temperature (on board),
// pressure
// power
// DO
<a>D0! <a>
+19.1374
{
crc
}<cr><lf>
// read: temperature (on probe)
For further information and SDI-12 examples, see the Seametrics application note, “
DO2
Interface Specification (SDI-12 and Modbus)
” available from our web site at:
www.seametrics.com
APPENDIX C: READING THE DO2 VIA DIRECT READ
Summary of Contents for DO2
Page 2: ......
