Response Frame Structure - Omron S8AS User Manual

Frame Structure
6-2-2

Response Frame Structure

■ Normal Response
Node No. Subaddress
0 1
STX
1 2
■
Response if Specified FINS Command was not Executed
Node No. Subaddress
0 1
STX
1 2
■
Response for Command Frame Error
Node No. Subaddress
0 1
STX
1 2
■
End Codes
End Name
code
00 Normal end
0F FINS com-
mand error
10 Parity error
11 Framing error
12 Overrun error
13 BCC error
14 Format error
16 Subaddress
error
• An end code is returned for each received command frame addressed to
the local node.
• No response will be returned if the message is not complete through the
ETX and BCC characters.
• The error priority indicates the priority of the error notification when there
were two or more errors.
End code
FINS-mini command text
2 2
End code
FINS-mini command text
F
0
2 2
End code
ETX
2 2 1
Meaning
The command frame was processed normally with-
out any of the following errors.
The specified FINS command could not be exe-
cuted. Refer to the response code for more details.
A parity error was detected in the received data
because the parity bit in the data did not match the
parity setting.
The stop bit was "0."
Attempted to write new data to the reception regis-
ter when the reception register was full.
The received BCC did not match the calculated
BCC.
There was an illegal character in the FINS-mini
frame (character other than ASCII 0 to 9 or A to F)
or data other than the test data was returned in
response to an Echoback Test.
There were no SID and FINS-mini.
There was no FINS-mini.
The FINS-mini MRC and SRC were incorrect.
The subaddress was invalid (unsupported).
There were no subaddress, SID, and FINS-mini.
The subaddress was shorter than 2 characters and
there were no SID and FINS-mini.
Section 6-2
BCC
ETX
1
BCC
ETX
1
BCC
1
None
7
1
2
3
4
6
5
1
1
Error
priority
91