
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.