Omron CJ1W-SCU22, Руководство по эксплуатации, Страница: 344 / 478

A Standard System Protocol
R-10
CJ-series Serial Communications Units Operation Manual for NJ-series CPU Unit(W494)
z
Example
The command and response frames for a K3N @ -series Intelligent Signal Processor are shown
below.
Command Frame
Response Frame
End code Name Meaning
"00" Normal end The command frame was processed normally without any of the fol-
lowing 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 or header.
"18" Frame length error The receive frame was too long.
Node No.
Command text
Data
Subaddress
Command Command
code Data contents
VARIABLE AREA READ "01" "01" Variable type Address "00" No. of ele-
ments
VARIABLE AREA WRITE "01" "02" Variable type Address "00" No. of ele-
ments 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" Test data
OPERATION COMMAND "30" "05" Command code
"00" "0"
Node No. Subaddress End code
Response text
Data
Command
code
Response
code
"00"