EKO MS-60, Instruction Manual, Page: 43 / 45

EKO INSTRUMENTS CO., LTD. - Pyranometer MS-60/60S - Instruction Manual Ver. 4
Pg. 42
A - 5 . C o m m u n i c a t i o n Sp e c i f i c a t i o n s [ M S - 6 0 S S D I - 1 2 ]
The SDI-12 is designed according to the following communication specifications.
Table A-11. Communication specification
Item Description
Communication protocol SDI-12 Version 1.4
Baud rate 1,200 bps
Data length 7bit
Stop bit 1
Parity bit Even
Communication distance Within 60m
Table A-12. SDI12 command list
* Example of response by "al!" Command:
“a18EKOMS-60vvvxx…xx<CR><LF>”
EKO: Manufacturer, MS-60: Model name, vvv: Version number[3 digits], xxxxxxx: Serial Number
command Response example Description
?! a<CR><LF> Check the address number of the device connected. [This is possible only
when devices are connected one-to-one.]
a! a<CR><LF> Check the device with address number
“a” that it is active.
aAb! b<CR><LF> Change the device address with address number
“a” to “b”.
* aI!
Details[described
later]
Request the identification information of the device with address number
“a”
aM! a0011<CR><LF> Request the device with address number
“a” to perform measurement only one
time.
aD0! +1000.0<CR><LF> Request the device with address number
“a” to send data. The device will
return the W/m
2
value.
aMC! a0011<CR><LF>
Request the device with address number
“a” to start measurement, and
request CRC making sure the command has been properly accepted.
aC!
aC0!
a00101<CR><LF> Request to the device with address number
“a” to take simultaneous
measurement to the device with bus connection.
aCn! a00101<CR><LF>
Request to the device with address number
“a” to take various types of
measurement to the device with bus connection.
aCC! a00101<CR><LF>
Request the device with address number
“a” to start continuous measurement,
and request error detection making sure the command has been properly
accepted.
aR0! 0+0.0<CR><LF>
Request the device with address number
“a” to perform measurement only one
time. The device will return the W/m
2
value.
aRC0! 0+0.0EmT<CR><LF>
Request the device with address number
“a” to start continuous measurement,
and request error detection making sure the command has been properly
accepted. The device will return the W/m
2
value.