GM8802F-2 Field Mounting Transmitter
GM8802-F2110101
19
5.2.1.5 Optional operation
Optional command
:
STX
Address
Channel no.
O
Parameter code
CRC
CR
LF
Correct response
:
STX
Address
Channel no. O
Parameter code
O
K
CRC
CR
LF
Here
:
O
—— 1bit
,
4FH
Parameter code
——
2bit
,
Please refer Character 5.2.1.1“Parameter code table”
For example:
Zeroing on address
01
in channel no.
1:
Optional command
:
02 30 31 31 4F 43 5A 38 34 0D 0A
Correct response
:
02 30 31 31 4F 43 5A 4F 4B 33 38 0D 0A
5.2.1.6 Error message
When GM8802F-4 finds error, then sends an error code to host computer.
Error message
:
STX
Address
Channel
no.
Optional
code
Parameter
code
E
Error
code
CRC
CR
LF
Here
:
Optional code
——
1bit
,
Please refer Character 5.2.1.1“Parameter code table”
Parameter code ——
2bit
,
Please refer Character 5.2.1.1 “Parameter code table”
Error code ——
1bit
,
error code
:
1
(
31H
)
:
CRC
verify error
2
(
32H
)
:
Operation code is wrong
3
(
33H
)
:
Parameter code is wrong
4
(
34H
)
:
Write wrong data
5
(
35H
)
:
Operation is not available
6
(
36H
)
:
Channel no. is wrong
For example:
Read present state and weight from address
01
in channel no.
1
:
Command
:
02 30 31 35 52 57 54 30 35 0D 0A
Response
:
02 30 31 35 52 57 54 45 36 32 38 0D 0A
Means: present error code
6
which indicator channel no. is wrong.
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