OG_MU-D1-R_v10e Circuit Design, Inc.
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OPERATION GUIDE
5.4.1.1 @DT Data transmit command 1
The data transmit command 1 ‘@DT’ is a command to transmit data towards the target station set as the Destination
ID at the source station.
When the source station MU-D1-R receives the command from the user controller, it returns a command response
as acknowledgment of receipt of the command. At the same time, it starts wireless data transmission. The target
station MU-D1-R outputs the data receive 1 in the ‘*DR’ format.
Format: ‘@’ + ‘DT’ + data size + data + ‘C
R
L
F
’
Data size is specified by 2 hexadecimal ASCII characters. The maximum data size that can be sent at one time
is 255 bytes.
The data is a numerical value up to 00h to FFh.
The data is sent to the target station set in the Destination ID: ‘@DI’
Format ‘@DT’ ss DD....D ‘
C
R
L
F
’
ss: Shows the data size in 2 hexadecimal digits Value: 00h to FFh
DD...D: D expresses 1-byte data. Value: 00h to FFh, amount of data: maximum 255 bytes
Example: Transmit the 10 bytes of data (0Ah) ‘0123ABC%#$’ to the target station set in the Destination ID.
The target station Equipment ID = 01h. The source station Equipment ID = 5Fh.
User
controller
DI=01
③
Send data
・Source station 5F status
①
Issue the data transmit command1：
②
：
Data transmit response
・Target station 01 status
Source
station
EI=5F
Target
station
EI=01
User
controller
@DT 0A 0123ABC%#$ C
R
L
F
＊DT = 0A C
R
L
F
＊DR = 0A 0123ABC%#$ C
R
L
F
④
Data receive1：
①
②
④
③
Send data
Data receive 1 (Target station output)
Example: Receives 5-byte user data (05h) ‘ABCDE’
Source station = 01, when the received signal level is -69 dBm (45h)
Data transmit command 1:
@DT 05 ABCDE C
R
L
F
*DR = 05 ABCDE C
R
L
F (default)
