OG_MU-4-434_v10e Circuit Design, Inc.
40
OPERATION GUIDE
Data receive 3
Example: Receives 5-byte user data (05h) ‘ABCDE’
Source station = 01, relay station = 02, when the received signal level is -69 dBm (45h)
Data transmit command 3 without ACK: @DT 05 ABCDE %R 02,03 C
R
L
F
When RI is OF
*DC = 45 05 ABCDE C
R
L
F (default)
When RI is ON
*DC = 45 05 ABCDE /R 01,02 C
R
L
F*1
*01= Note that the ‘%’ for data transmit commands is ‘/’ for data receives.
2. Receive confirmation acknowledgement: with ACK
When the source station MU-4 receives data transmit command 3 ‘@DT...%A’ from the user controller, it returns a
response as an acknowledgment of command receipt. At the same time, it starts wireless data transmission. The
target station MU-4 outputs data receive 3 in the ‘*DC’ format. This command requests that the target station return
data receive acknowledgment ‘ACK’.
Format 1: ‘@’ + ‘DT’ + control size + c ‘%A’ + route infor ‘C
R
L
F
’
Format 2: ‘@’ + ‘DT’ + control size + c ‘%A’ + ‘C
R
L
F
’
Details
Format ‘@DT’ ss DD....D ‘%A’ rr,rr,...,rr ‘
C
R
L
F
’
ss: Shows the control 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. When
entering the route information, enter the Equipment ID of the target unit at the end. With 1:1 communication, set
only one Equipment ID for the target station in the route information. 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) control ‘0123ABC$#4’ to target station ID = 8F via relay stations ID = 01, 02,
03. The source station Equipment ID = 5F.
⑤ACK return
・Source station 5F status
①Issue the data transmit command 3
②Data transmit response
⑥ACK response
Format 2:@DT 0A 0123ABC$#4 %A C
R
L
F
(issued after the relay time has elapsed)
・Target station 8F status
④Data receive 3
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
*DC=45 00 C
R
L
F
Format 1:@DT 0A 0123ABC$#4 %A 01,02,03,8F C
R
L
F
When RI=OF ＊DC=45 0A 0123ABC$#4 C
R
L
F
(Default)
When RI=ON ＊DC=45 0A 0123ABC$#4 /R 5F,01,02,03 CRLF
③Send data
①
③Send data
* ‘45h’ at the front indicates the signal level of the received packet. In this case, it is -69 dBm (45h).
For details of the value, refer to the ‘RA’ command.
* When RI = ON, the delimiter character is ‘/’, not ‘%’.
