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DeviceNet (MCW151-DRT-E only) Section 4-2
Error Response
The following response is returned if an error occurs for the explicit message.
Parameters Destination node address (command)
The node address of the destination of the explicit message.
Service code (command, response)
A service code defined for DeviceNet. In a normal response, bit 15 of the ser-
vice code specified will be turned ON and returned. For an error response, the
service code will always be 94 Hex.
Class ID (command)
The class ID of the destination of the explicit message. The class ID is always
008A Hex when reading or writing the MC Unit memory.
Instance ID (command)
The instance ID of the destination of the explicit message. The instance ID is
always 0001 Hex when reading or writing the MC Unit memory.
Service data (command, response)
The data defined for the services codes.
No. of bytes received (response)
The number of bytes received from the destination node address (local node).
Source node address (response)
The node address of the OMRON I/O Slave Unit or slave manufactured by
another company of which the explicit message was sent is returned.
General error code (response)
The following error codes may be returned.
28 01 00 00 94 FF
Source node address
Additional error code FF Hex
Command
code
Response
code
No. of bytes
received
General error code
Servicecode94Hex
General
error code
Error name Cause of error
08 Hex Service not supported The requested service was not imple-
mented or was not defined for this
Object Class/Instance.
09 Hex Invalid attribute value Invalid attribute data detected.
11 Hex Reply data too large The data to be transmitted in the
response buffer is larger than the allo-
cated response buffer.
13 Hex Not enough data The service did not supply enough
data to perform the specified opera-
tion.
15 Hex Too much data The service supplied more data than
was expected.
16 Hex Object does not exist The object does not exist in the
device.
20 Hex Invalid parameter A parameter associated with the
request was invalid.
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