Rockwell Automation 1769-ADN Compact I/O 1769-ADN DeviceNet Adapter - Manual (Page 185)

Publication 1769-UM001B-EN-P - October 2002
Explicit Messaging Application Examples B-27
If the Extended Error Code is FF hexadecimal, the responding object
has no additional information to specify. For example, if we make the
third, fourth, fifth, or sixth word of the configuration portion in the Set
I/O Module Configuration command 0 rather than 1862 hexadecimal,
the following will be returned in the reply:
Save 1769 I/O Module Configuration
This command has 5 words, where the first three are required by the
1747-SDN and the last two are sent to the 1769-ADN. This command is
extremely important when modifying the configuration of any 1769
I/O module in a 1769 I/O system. When a Set 1769 I/O Module
Configuration message is sent to an I/O module with an explicit
message and there are no errors, the module immediately begins
using the new configuration parameters.
However, until the Save 1769 I/O Module Configuration message is
sent to the 1769-ADN, the adapter does not save the new
configuration parameters. The adapter downloads the saved
configuration for all configured I/O modules in its system on a power
cycle.
This means that if you configure an I/O module with an explicit
message and do not send the Save message with another explicit
message after the configuration command is successfully completed, a
power cycle or mode transition will result in the “old” configuration
being downloaded to the I/O module in question. This also indicates
that the new configuration parameters sent to the I/O module with the
explicit message would be lost. Refer to the Ladder Logic Example
Program on page B-30 for this command’s ladder logic.
Reply (Hexadecimal) Description (High Byte/Low Byte)
0101 TXID/1747-SDN Status
0002 Port # 0/Byte Count = 2
9413 94 is reply to 10 Service, 4 indicates an error is returned,
Mac ID is 13 hexadecimal (19 decimal)
FF09 09 hexadecimal means Invalid Attribute Value, FF hexadecimal
means that there is no additional information to specify