Command Structure - Omron e5ck User Manual

6.3 Command Structure

Command
Response
End code = 00
Response
End code = 00
About invalid
parameters
Command structure is as follows. Each command is paired with a re
sponse.
2B 1B 2B
Unit Command
code
No.
@
Command type
2B 1B 2B
Unit Command
code
No.
@
Command type
2B 1B 2B
Unit Command
code
No.
@
Command type
• @"
The start character. This character must be inserted before the leading
byte.
• Unit No.
Specifies the unit No." of the E5CK T. If there are two or more trans
mission destinations, specify the desired destination using unit No."
• Command type
Code
1
2
3
4
5
• Command code
Specifies the command for each command type. With parameter read/
write commands and program parameter read/write commands, this be
comes the parameter No.
• Data
Specifies the set value or setting content. With the parameter read and
program parameter read commands, set dummy data 0000". In the re
sponse, this is inserted only when the end code is 00".
Currently , if a command is used for invalid parameters (parameters that do not satis
fy the conditions of use in Chapter 5), the undefined" error (end code: IC) response
is returned.

6.3 Command Structure

4B 2B
FCS
Data
2B 4B
End Data
code
2B 2B 2B
FCS
End
code
* CR
Command type
Parameter read
Parameter write
Special command
Program parameter read
Program parameter write
2B
* CR
2B 2B
FCS
* CR
6–5