Omron E5ZE-8 Communications Manual page 87

End Codes
End Name
code
21 Invalid Command Due to
Error Status
End Code Priority
84
There is a temperature controller error.
Note 1. Upper - case I ( " ai " ).
2. **Lower - case l ( " el " )
If multiple end codes are generated by execution of a single command, only
the end code with the highest priority will be returned with the response. End
code priority, from highest to lowest, is as follows:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10. Prohibited command
11. Numeric errors
12. Invalid commands due to error status
Cause
Framing errors
Parity errors
Overrun errors
Frame length errors
FCS errors
Command undefined errors
Invalid address
Format errors
Error status
Remedy
Check the type of temperature control-
ler error with Output Operation Read
(RU). Take the following countermea-
sures according to the kind of tempera-
ture controller error.
Memory Error
Turn the power OFF and ON. If a mem-
ory error occurs again, send Initialize
Setting Data (MC) and Memory Write
(WE) in this order and turn the power
OFF and ON again. If a memory error
still occurs, the memory needs repairs.
Cold Junction Compensation Error
The ambient operating temperature is -
15 C or less, or 60 C or more. Use the
E5ZE at an ambient operating tempera-
ture of -15 to 60 C.
Set Data Error
The set point at some control points or
in some memory banks are not within
the setting range. Initialize Setting Data
(MC) must be sent to initialize all the
data items and reset the data items
within the setting range.
Other Errors
Turn the power OFF and ON. If the
same errors occur, the E5ZE needs
repairs.
Section 2-4