Appendix BCompoWay/F Master Protocol
140

Note The end codes are described in the following table.

End code Name Meaning
“00”Normal end The command frame was processed normally without any
of the following errors.
“0F”Command error The specified command could not be executed. Refer to
the response code for more information.
“10”Parity error A parity error was detected for one of the characters that
was received.
“11”Framing error A framing error was detected for one of the characters
that was received.
“12”Overrun error A overrun error was detected for one of the characters
that was received.
“13”BCC error The BCC for the receive frame was incorrect.
“14”Format error An illegal command or illegal character was received in
the command and text (characters other than ASCII 0 to 9
or A to F).
“16”Subaddress error The receive frame contained an illegal subaddress.
“18”Frame length error The receive frame was too long.
Example

The command and response frames for a K3N-series Intelligent Signal Processor are shown below.

Command Frame

Node No.
SID
Command Text
Data
Command
code Data contents
Subaddress
Command Command
code Data contents
VARIABLE AREA READ “01” “01”Variable type Address “00”No. of
elements
VARIABLE AREA WRITE “01” “02”Variable type Address “00”No. of
elements Write data
PARAMETER AREA READ “02” “01”Parameter
type Address No. of elements Write data
PARAMETER AREA WRITE “02” “02”Parameter
type Address No. of elements
PROCESSOR STATUS READ “05” “03”
CONTROLLER STATUS READ “06” “01”
ECHOBACK TEST “08” “01”Text data
OPERATION COMMAND “30” “05”Command code

Response Format

Node No. Subaddress End code Response Text
Data
Command
code Response
code