Omron S8AS, User Manual

Page: 109 / 146

91
Frame Structure
Section 6-2
6-2-2 Response Frame Structure
■ Normal Response
■
Response if Specified FINS Command was not Executed
■ Response for Command Frame Error
■
End Codes
• 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
Name Meaning Error
priority
00 Normal end The command frame was processed normally with-
out any of the following errors. None
0F FINS com-
mand error The specified FINS command could not be exe-
cuted. Refer to the response code for more details. 7
10 Parity error A parity error was detected in the received data
because the parity bit in the data did not match the
parity setting. 1
11 Framing error The stop bit was “0.” 2
12 Overrun error Attempted to write new data to the reception regis-
ter when the reception register was full. 3
13 BCC error The received BCC did not match the calculated
BCC. 4
14 Format error 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.
6
16 Subaddress
error 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.
5
0 1
1 2 2 2 1 1
Node No. Subaddress FINS-mini command text BCC
End code
STX
ETX
0 1 0 F
1 2 2 2 1 1
Node No. Subaddress FINS-mini command text BCC
End code
STX
ETX
0 1
1 2 2 2 1 1
Node No. Subaddress BCC End code
STX
ETX