1-10
Section 1
Connections and Settings of External Devices
ZS Series
CompoWay/F Communication Command Reference
Section 1
About Com
m
unication Commands
Examples of Abnormal End
This section shows the examples of end codes for abnormal ends while receiving commands.
●
Invalid subaddress, and no SID and command text exist
Command
STX NODE
No. Subaddress
ETX
BCC
02Hex
"0" "A"
03Hex
Response
STX
NODE No.
Subaddress
End code
ETX
BCC
02Hex
"0" "A" "1" "6" 03Hex
End code is "16" (Subaddress error).
・
This response occurred because subaddress errors are prioritized over format
errors.
●
No command text exists in the command
Command
STX NODE
No. Subaddress
SID
ETX BCC
02Hex
"0" "0" "0"
03Hex
Response
STX
NODE No.
Subaddress
End code
ETX
BCC
02Hex
"0" "0" "1" "4" 03Hex
End code is "14" (Format error).
●
Node No. is missing
Command
STX ETX BCC
02Hex 03Hex
One character is missing for the Node No.
Response
No response is returned.
●
No subaddress exists, and an invalid BCC is used
Command
STX NODE
No. ETX BCC
02Hex
03Hex
Err
Response
STX
NODE No.
Subaddress
End code
ETX
BCC
02Hex
"0" "0" "1" "3" 03Hex
Subaddress is "00" and end code is "13" (BCC error).
Examples of Abnormal End