Specifications

Publication 1771-IN014B-EN-P - September 2001
34 DeviceNet Scanner Module Catalog Number 1771-SDN/C
• If a slave device returns a DeviceNet error in response to the
request downloaded from the processor, the scanner recognizes
the error as a successful transaction (status code =1).
A failure to respond to the request within the number of retries or
timeout period specified for the Explicit Message Connection is
recognized by the scanner module as an error. The error code is
returned in the status attribute of the transaction header.
Explicit Messaging Error Codes
Error codes have two bytes of data. The first byte is a General Error
Code and the second is an optional Additional Code Field that may
contain additional information about the error. If this field is unused,
the value 0FFH is shown.
The following table describes explicit
messaging error codes.
Numeric
Code:
Name: Description:
02H Resource unavailable A needed resource was not available
08H Service unsupported Service is not defined or implemented for
this class/instance
09H Invalid attribute value Data is invalid for the specified attribute
0BH Already in requested state Object is in the requested state - redundant
request
0CH Object state conflict Not allowed with object in present state
0EH Attribute cannot be set Read-only attribute
0FH Privilege violation A permission/privilege check failed
10H Device state conflict Not allowed with device in present state
11H Reply too big Reply larger than buffer allocated when
connection was established
13H Too little data Request included insufficient data
14H Attribute not supported Attribute number is incorrect
15H Too much data Request included extra data
16H Object does not exist Class/instance numbers are incorrect
18H No stored attribute data Attribute data was not saved prior to this
request
19H Store operation failure Attribute data was not successfully saved
1FH Vendor-specific error Second byte may offer details - refer to
vendor documentation
20H Invalid parameter Parameter associated with request is invalid
D0H Reserved and service-specific
errors
Used only when none of the standard error
codes supplemented by the second byte
accurately describes the problem.
FFH