№
SX-DCT00221 -
48-
Panasonic Corporation
13-7
.
Example of data communication
●
When power is turned on
Communication data is shown below in chronological order when request for sending is executed in
power-on for the amplifier.
Initial request response at the first, and then data update request response is answered from the ampli-
fier.
Then, if the status of amplifier has not changed, only transmission completion response is answered.
Shown below is the status where the amplifier is connected with host ID = 01h (1), amplifier ID = 81h
(129).
It is represented by ASCII characters. (Data in the parenthesis is hexadecimal ASCII code.)
①
Request for sending
Host
→
SOH
(01h)
8
(38h)
1
(31h)
0
(30h)
1
(31h)
ENQ
(05h)
②
Initial request response
Amplifier
←
SOH
(01h)
0
(30h)
1
(31h)
8
(38h)
1
(31h)
STX
(02h)
#
(23h)
Host
→
SOH
(01)
8
(38)
Amplifier
←
I
(49h)
9
(39h)
9
(39h)
9
(39h)
9
(39h)
0
(30h)
0
(30h)
0
(30h)
0
(30h)
ETX
(03h)
BCC
(6Bh)
Host
→
1
(31h)
0
(30h)
1
(31h)
ACK
(06h)
Amplifier
←
SOH
(01h)
0
(30h)
1
(31h)
8
(38h)
1
(31h)
EOT
(04h)
③
Request for sending
Host
→
SOH
(01h)
8
(38h)
1
(31h)
0
(30h)
1
(31h)
ENQ
(05h)
④
Data update request response
Amplifier
←
SOH
(01h)
0
(30h)
1
(31h)
8
(38h)
1
(31h)
STX
(02h)
#
(23h)
Host
→
SOH
(01)
8
(38)
Amplifier
←
C
(43h)
8
(38h)
1
(31h)
0
(30h)
3
(33h)
0
(30h)
0
(30h)
0
(30h)
2
(32h)
ETX
(03h)
BCC
(69h)
Host
→
1
(31h)
0
(30h)
1
(31h)
ACK
(06h)
Amplifier
←
SOH
(01h)
0
(30h)
1
(31h)
8
(38h)
1
(31h)
EOT
(04h)
⑤
Request for sending
Host
→
SOH
(01h)
8
(38h)
1
(31h)
0
(30h)
1
(31h)
ENQ
(05h)
⑥
Transmission completion response
Amplifier
←
SOH
(01h)
0
(30h)
1
(31h)
8
(38h)
1
(31h)
EOT
(04h)