OG_MU-4-434_v10e Circuit Design, Inc.
37
OPERATION GUIDE
Data receive 2
Example: Receives 5-byte user data (05h) ‘ABCDE’
Source station = 01, relay stations = 02, target station=03, when the received signal level is -69 dBm (45h)
Data transmit command 2 without ACK: @DT 05 ABCDE /R 02,03 C
R
L
F
When RI=OFF (default)
When SI=OFF
*DR = 05 ABCDE C
R
L
F(default)
When SI= ON
*DS = 45 05 ABCDE C
R
L
F
When RI=ON
When SI=OFF
*DR = 05 ABCDE /R 01,02 C
R
L
F
When SI= ON
*DS = 45 05 ABCDE /R 01,02 C
R
L
F
* RI = Attach route information mode, SI = Attach RSSI information mode
2. Receive confirmation acknowledgement: with request for ACK
When the source station MU-4 receives the data transmit command 2 ‘@DT.../A’ from the user controller, it returns a
response as an acknowledgment of receipt of the command. At the same time, it starts wireless data transmission.
The target station MU-4 outputs the data receive 2 in the ‘*DR’ format. This command requests the target station to
return a data receive acknowledgment ‘ACK’.
Format 1: ‘@’ + ‘DT’ + data size + data + ‘/A’ + route infor ‘
C
R
L
F
’
Format 2: ‘@’ + ‘DT’ + data size + data + ‘/A’ + ‘
C
R
L
F
’
Details
Format ‘@DT’ ss DD....D ‘/A’ rr,rr,...,rr ‘
C
R
L
F
’
ss: Shows the data size in 2 hexadecimal digits and ASCII characters. Value: 00h to FFh, maximum 255
bytes
DD...D: D expresses 1-byte data. Value: 00h to FFh, amount of data: maximum 255 bytes
rr,rr,...,rr: Shows the route information in 2 hexadecimal digits and ASCII characters. Value: 00h to FEh,
number of relay stations maximum 10 units
With Format 1, the route information is entered directly in the command.
With Format 2, transmission is based on route information set in the route register with the RT command or on
the content of the Destination ID. When entering the route information, enter the Equipment ID of the target unit
at the end. If no route information is set (NA set for the RT command), the equipment set as the Destination ID
will be the target station.
To output the same data from all currently connected relay stations, issue the command with ‘/B’ instead of ‘/A’.
Example: Transmit the 10-byte (0Ah) data ‘0123ABC%#4’ to target station ID = 8F via relay station IDs = 01, 02,
03, and get ACK from the target station. The source station Equipment ID = 5F.
⑤ACK return
・Source station 5F status
①Issue the data transmit command 2
②Data transmit response
⑥ACK response
Format 2:@DT 0A 0123ABC$#4 /A C
R
L
F
(issued after the relay time has elapsed)
・Target station 8F status
④Data receive 2
⑤ACK return
②
⑥
④
User
controller
User
controller
Target
station
EI=8F
Relay
station
EI=03
Relay
station
EI=01
Relay
station
EI=02
Source
station
EI=5F
*DT=0A C
R
L
F
*DR=00 C
R
L
F
Format 1:@DT 0A 0123ABC$#4 /A 01,02,03,8F C
R
L
F
When RI=OF ＊DR=0A 0123ABC$#4 C
R
L
F
(Default)
When RI=ON ＊DR=0A 0123ABC$#4 /R 5F,01,02,03 C
R
L
F
③Send data
①
③Send data
The relay stations outputs the same data as from the target station with ‘/S’.
