3.
ommunication Data Format
a
ontrol message
№
1
2
3
4
5
:
:
X
X+1
* Check Sum: The total from №1 to №X
when value exceeds 255
1b
te of data is confirmed the bottom.
* When sendin
controls in se
uence
kee
interval of more than 500ms between the commands.
* When sendin
an en
uir
ri
ht after sendin
the control of a same command
also kee
interval of more than
between the commands.
b
Enquiry message
№
1
2
3
4
5
6
* Check Sum: The total from №1 to №5
when value exceeds 255
1b
te of data is confirmed the bottom.
c
Answer message
1
Control answer
№
1
2
3
* 0x00: Com
leted
Normal response.
0x01: Limit Ove
The packet was received normally, but the data value was over the upper limit.
Forcedly the monitor adjusted the data to maximum value.
0x02: Limit Unde
The packet was received normally, but the data value was under the lower limit.
Forcedly the monitor adjusted the data to minimum value.
0x03: Command Canceled
The packet was received normally, but the command was cancelled because th
unction was not in adjustable mode, such as "--" a
unction displayed as in user
menu.
* Check Sum: The total from №1 to №2
when value exceeds 255
1b
te of data is confirmed the bottom.
2
En
uir
answer
Com
lete
№
1
2
3
4
:
:
X
X+1
* 0x00: Com
leted
Normal response.
* Return Data returns the read value.
* Check Sum: The total from №1 to №X
when value exceeds 255
1b
te of data is confirmed the bottom.
Return DataX
Check Sum
0xX
0xX
: 0xX
: 0xX
Return Data Size 0xX
Return Data1 0xX
Header 0x70: Answe
nswer 0x00: Completed
Check Sum 0xX
Item Value
0x02: Limit Unde
0x03: Command Canceled
Item Value
0x01: Limit Ove
Item
Function
nswer*
0x70: Answe
0x00: Completed
0x8C: Control
Cate
or
0xX
Function
Header
DataX
Header
Data1（Len
th）
Data2（Data1）
Check Sum
:
:
Check Sum
0xX
0xX
0xX
0xX
0xX
0xX
0xX
Value
Header 0x83: Enquir
Cate
or
0xX
0xX
Data1 0xFF
Data2
0xX
0xFF
Item Value
