Precautions for Correct Use
If Execute changes back to FALSE before Done
changes to TRUE, Done stays TRUE for only
one task period. (Example 1)
If you want to see if Done is TRUE at any time, make sure to keep Execute TRUE until you
confirm that Done is TRUE.
If Execute is TRUE until Done changes to TRUE, Done stays TRUE until Execute changes to
FALSE. (Example 2)
Execute
Done
Execute
Don
e
Busy
(Executing)
Busy
(Executing)
Changes to
FALSE in next
tas
k period.
When Execute
changes to
FALSE, Done
returns to FALSE.
Example 1 Example 2
10-2-8
Response Codes
This section describes the response codes stored in the ErrorIDEx output variable if an error occurs
during execution of a CIP message communications instruction.
General Status Codes
As response codes, general codes are stored in the ErrorIDEx output variable (DWORD data) after
execution of a CIP communications instruction is completed.
If an additional code is added, the additional code is also stored.
General status code (1 byte)
Additional code (1 word)
ErrorI
DEx
31 23 16 15 024
General
status
code (hex)
Status name Description of status
00 Success Service was successfully performed by the object specified.
01 Connection failure A connection related to service failed along the connection path.
02 Resource unavailable Resources needed for the object to perform the requested service
were unavailable.
03 Invalid parameter value See Status Code 20 hex.
04 Path segment error The path segment identifier or the segment syntax was not under-
stood by the processing node. Path processing stops when a path
segment error occurs.
05 Path destination unknown The path is referencing an object class, instance, or structure ele-
ment that is not known or is not contained in the processing node.
Path processing stops when a Path Destination Unknown Error oc-
curs.
10 CIP Message Communications
10-19
NX-series EtherNet/IP Unit User's Manual (W627)
10-2 Client Function of CIP Mes-
sage Communications
10
10-2-8 Response Codes
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