How To Read Communications Error Information; End Code - Omron E5AK User Manual

CHAPTER 6 USING THE COMMUNICATIONS FUNCTION

6.5 How to Read Communications Error Information

The result of communications on the E5AK can be checked by the end code in the response frame. Use
this end code to remedy errors that may occur.
J End code
0D

End code

Code name
F Description
F Action
10
End code Code name
F Description
F Action
11
End code Code name
F Description
F Action
13
End code Code name
F Description
F Action
About the unit No.
6--12
Communications are normal when the end code in the response is "00".
If the end code is not "00", this indicates that an error other that is not
an undefined error has occurred. The end code format is as follows and
does not contain a data area.
2B
Unit
No.
@
Command cannot be executed
• Writing was carried out during local operation.
• Writing was carried out during executing auto-tuning.
• An attempt was made to execute 40%AT during heating and cooling
control or position-proportional control.
• An attempt was made to switch run/stop in setting level 1.
• An attempt was made to execute AT in setting level 1.
• Issue the parameter read or write commands in conditions other than above.
Parity error
Parity check error was detected in the received data.
Check the communications condition. If the communications condition
of the host computer and E5AK controller match, then a probable cause
is a problem in the communications circuit of one or both of the host
computer and E5AK controller.
Framing error
Stop bit cannot be detected.
Check the communications condition. If the communications condition
of the host computer and E5AK controller match, then a probable cause
is a problem in the communications circuit of one or both of the host
computer and E5AK controller.
FCS error
The FCS (Frame Check Sequence) do not match.
Check the FCS program.
Responses are not returned unless the target unit for communications and the
unit No. in the command match.
1B 2B 2B
FCS
Command End
code
code
Command type
2B 2B
* CR