Omron H8GN, Руководство пользователя

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2.1 Data Format
2-3
$ !# * ! '#% % -% '& !% * ! '#%
% )&$' ! % ! ! &" %! %! %(! #%#$
$%% %$ %! % #
STX SID ETX BCC
03H 35H 02H 0(30H) 0(30H) 0(30H) 0(30H) 0(30H) 0(30H) 5(35H) 0(30H) 3(33H)
BCC=30H30H30H30H30H30H35H30H33H03H=35H
Node No. SubĆaddress Command text
Calculation result 35H is set to the BCC area.
The symbol indicates exclusive ORoperation and the H indicates hexadecimal code.
JResponse frame
STX ETX
1 2 2 2 1 1
BCC Node No. SubĆaddress Command text End code
End
code
Name Description
Error
Detection
Priority
00 Normal completion The command ended normally without error. None
0F FINS command error The specified FINS command could not be executed.
The FINS response code should indicate why the command
could not be executed.
8
10 Parity error The sum total of bits whose received data is 1" does not
match the set value of communications parity."
2
11 Framing error Stop bit is 0". 1
12 Overrun error An attempt was made to transfer new data when the recepĆ
tion data was already full.
3
13 BCC error The calculated BCC value is different from the received BCC
value.
5
14 Format error
•
The command text contains characters other than 0 to 9,
and A to F. This error is not applicable to the echoback test.
(For details, see chapters 2.3 Echoback test.")
•
No SID and command text. Or, no command text
•
MRC/SRC" not included in command text
7
16 SubĆaddress error
•
Illegal (unsupported) subĆaddress
•
No subĆaddress, SID and command text
•
SubĆaddress less than two characters, and no SID and
command text
6
18 Frame length error The received frame exceeds the fixed (supported) number of
bytes.
4
•
! $ #%&# %! #' ! #$ #$$$ %! %
$ !
•
! #$"! $ ( #%&# % %$ % #$"! $ # #
!"% &" %! %
•
+##!# %%! #!#%* %$ % "#!#%* ( %(! !# !#
##!#$ !&# $&% !&$*
F BCC calculation
example