Allen-Bradley PowerFlex 20-COMM-D, User Manual

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6-12 Using Explicit Messaging
Data Format for a Read and Write Parameter
The data in this example is for a PowerFlex drive at node address 1.
Refer to Formatting Explicit Messages in this chapter for a description
of the content of the data file.
Request Data for Read of Drive Parameter 101
Response Data for Read of Drive Parameter 101
Request Data for Write to Drive Parameter 101
Response Data for Write to Drive Parameter 101
SLC Example
Address Value (hex) Description Refer to . . .
N20:10 0101 TXID = 01, Command = 01 (execute) 6-5
N20:11 0006 Port = 00, Size = 06 bytes 6-5
N20:12 0E01 Service = 0E (Get_Attribute_Single) C-10
Address = 01 (Node Address) 6-5
N20:13 000F Class = 0F (Parameter Object) C-8
N20:14 0065 Instance = Parameter 101 (65 hex)
N20:15 0001 Attribute = 01 (Parameter Value) C-9
Address Value (hex) Description Refer to . . .
N20:50 0101 TXID = 01, Status = 01 (successful) 6-6
N20:51 0002 Port = 00, Size = 02 bytes 6-6
N20:52 8E01 Service = 8E (successful)
Address = 01 (Node Address) 6-6
N20:53 03E8 Response Data = 1000 (3E8 hex) = 10.00
seconds
Address Value (hex) Description Refer to . . .
N20:10 0101 TXID = 01, Command = 01 (execute) 6-5
N20:11 0008 Port = 00, Size = 08 bytes 6-5
N20:12 1001 Service = 10 (Set_Attribute_Single) C-10
Address = 01 (Node Address) 6-5
N20:13 000F Class = 0F (Parameter Object) C-8
N20:14 0065 Instance = Parameter 101 (65 hex)
N20:15 0001 Attribute = 01 (Parameter Value) C-9
N20:16 07D0 Data = 2000 (7D0 hex) = 20.00 seconds
Address Value (hex) Description Refer to . . .
N20:50 0101 TXID = 01, Status = 01 (successful transaction) 6-6
N20:51 0000 Port = 00, Size = 00 bytes 6-6
N20:52 9001 Service = 90 (successful)
Address = 01 (Node Address) 6-6