Rockwell Automation 1769-ADN Compact I/O 1769-ADN DeviceNet Adapter - Manual (Page 186)

Publication 1769-UM001B-EN-P - October 2002
B-28 Explicit Messaging Application Examples
The following table illustrates the Save 1769 I/O Module Configuration
command and the command reply:
Get 1769 I/O Module Configuration
This command has 6 words, where the first three are required by the
1747-SDN and the last three are sent to the 1769-ADN and the
specified 1769 I/O module. This command allows you to get the
specified I/O module’s configuration so that you may verify the
configuration of any 1769 I/O module. Refer to the Ladder Logic
Example Program on page B-30 for the ladder logic containing this
command.
Command (Hexadecimal) Description (High Byte/Low Byte)
0101 TXID 1 /Command 2
0004 Port # 3 /Byte Count 4
1613 Service 5 /Mac ID 6
000F Class 7
0000 Instance 8
Reply (Hexadecimal) Description (High Byte/Low Byte)
0101 TXID 1 /Status
0000 Port # 3 /Byte Count 4
9613 Service 5 /Mac ID 6
1 TXID (Transmission ID) is used by the scanner to track the transaction to completion and returns the same
value with the reply. To properly track commands with their replies, this value should be incremented for
each new command sent. TXID size is one byte.
2 Command instructs the scanner on how to administer the request. “01” is the Execute This Transaction
Block command. The command data size is one byte. Refer to the 1747-SDN User Manual, publication
1747-5.8, for list of supported commands.
3 Port # is the physical channel of the scanner where the transaction is to be routed. The port # must be 0
(channel A) and the data size is one byte.
4 Byte Count identifies the number of bytes in the transaction body. The transaction body begins with
word 3 and the data size is one byte.
5 Service for the Save command is 16 hexadecimal (22 decimal). Service data size is one byte.
6 Mac ID is the DeviceNet network node address of the device for which the transaction is intended. The
slave device must be listed in the scanner module’s scan list and be online for the explicit message
transaction to complete successfully. The Mac ID value must be hexadecimal. In this example, the node
address of the 1769-ADN adapter is 19 decimal or 13 hexadecimal. The Mac ID data size is one byte.
7 Class specifies the desired DeviceNet class. “000F” hexadecimal is the class code for the object
responsible for saving configuration, the parameter object. The class data size is one word.
8 Instance for the Save command is 0000 hexadecimal.
There is no Attribute for this command.