Command Configuration; Command Type; Command Code; End Code - Omron E5AK User Manual

6.3 Command Configuration

Command
Response

End code = 00

Response
End code = 00
Command configuration is as follows and are paired with a response.
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 lead-
ing byte.
• Unit No.
Specifies the "unit No." of the E5AK. If there are two or more trans-
mission destinations, specify the desired destination using "unit No."
• Command type
Specifies the command type by codes "1" to "3": parameter read,
parameter write and special commands.

• Command code

Specifies the command for each command type. With parameter read/
write commands, this becomes the parameter No.
• Data
Specifies the set value or setting content. In the parameter read com-
mand, set dummy data "0000". In the response, this is inserted only
when the end code is "00".
• End code
Sets the communication results. For details on the types and mean-
ings of end codes, see 6.5 How to Read Communications Error
Information (page 6-12).
• FCS (Frame Check Sequence)
Set the frame check results from the start character to the data sec-
tion. For details on the frame check, see 6.6 Program Example (page
6-14).
• "*" "CR (Carriage Return) code"
Indicates the end (terminator) of the command or response block.
6.3 Command Configuration
4B 2B
FCS
Data
No data sections in the read commands.
2B 4B
End Data
code
2B 2B 2B
FCS
End
code
* CR
2B
* CR
2B 2B
FCS
* CR
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