Omron E5EK, User Manual

Page: 147 / 203

6.3 Command Structure
E5EK
6--5
6.3 Command Structure
Command structure is as follows. Each command is paired with a re-
sponse.
Unit
No.
Command
code
Data
FCS
CR
Command type
@
*
2B 1B 2B 4B 2B 2B
Command
Unit
No.
Command
code
Data
FCS
Command type
CR
End
code
@
*
2B 1B 2B 4B 2B 2B 2B
Response
End code = 00
Unit
No.
Command
code
FCS
Command type
CR
End
code
@
*
2B 1B 2B 2B 2B 2B
End code = 00
Response
•
“@”
The start character. This character must be inserted before the lead-
ing byte.
•
Unit No.
Specifies the “unit No.” of the E5EK-T. If there are two or more trans-
mission destinations, specify the desired destination using “unit No.”
•
Command type
Code Command type
1 Parameter read
2 Parameter write
3 Special command
4 Program parameter read
5 Program parameter write
•
Command code
Specifies the command for each command type. With parameter read/
write commands and program parameter read/write commands, this
becomes 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 response, this is inserted only when the end code is “00”.
Currently, if a command is used for invalid parameters (parameters that do not
satisfy the conditions of use in Chapter 5), the “undefined” error (end code: IC)
response is returned. About invalid
parameters