
489
Communications Guide
DNP Protocol
Table 3: DNP Implementation Table
| Object | 
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 | Request | Response | |||
| 
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| Obj | 
 | Var | Description | Func Codes | Qual Codes | Func Codes | Qual Codes | 
| 
 | 
 | 
 | 
 | 
 | (Hex) | 
 | (Hex) | 
| 
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| 1 | 
 | 0 | Binary Input - All Variations | 1 | 06 | 
 | 
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| 
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| 1 | 
 | 1 | Binary Input | 1 | 00, 01, 06 | 129 | 00, 01 | 
| 
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| 1 | 
 | 2 | Binary Input With Status (Note 6) | 1 | 00, 01, 06 | 129 | 00, 01 | 
| 
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| 2 | 
 | 0 | Binary Input Change - All Variations | 1 | 06, 07, 08 | 
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| 
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| 2 | 
 | 1 | Binary Input Change Without Time | 1 | 06, 07, 08 | 129 | 17, 28 | 
| 
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| 2 | 
 | 2 | Binary Input Change With Time | 1 | 06, 07, 08 | 129 | 17, 28 | 
| 
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| 10 | 
 | 0 | Binary Output - All Variations | 1 | 06 | 
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| 
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| 10 | 
 | 2 | Binary Output Status | 1 | 00, 01, 06 | 129 | 00, 01 | 
| 
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| 12 | 
 | 1 | Control Relay Output Block | 3, 4, 5, 6 | 17, 28 | 129 | 17, 28 | 
| 
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| 20 | 
 | 0 | Binary Counter - All Variations | 1, 7, 8, 9, 10 | 06 | 129 | 00, 01 | 
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| 20 | 
 | 5 | 1, 7, 8, 9, 10 | 06 | 129 | 00, 01 | |
| 
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| 20 | 
 | 6 | 1, 7, 8, 9, 10 | 06 | 129 | 00, 01 | |
| 
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| 21 | 
 | 0 | Frozen Counter - All Variations | 1 | 06 | 129 | 00, 01 | 
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| 21 | 
 | 9 | 1 | 06 | 129 | 00, 01 | |
| 
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| 21 | 
 | 10 | 1 | 06 | 129 | 00, 01 | |
| 
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| 30 | 
 | 0 | Analog Input - All Variations | 1 | 06 | 
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| 
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| 30 | 
 | 1 | 1 | 00, 01, 06 | 129 | 00, 01 | |
| 
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| 30 | 
 | 2 | 1 | 00, 01, 06 | 129 | 00, 01 | |
| 
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| 30 | 
 | 3 | 1 | 00, 01, 06 | 129 | 00, 01 | |
| 
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| 30 | 
 | 4 | 1 | 00, 01, 06 | 129 | 00, 01 | |
| 
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| 32 | 
 | 0 | Analog Input Change - All Variations | 1 | 06, 07, 08 | 
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| 
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| 32 | 
 | 1 | 1 | 06, 07, 08 | 129 | 17, 28 | |
| 
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| 32 | 
 | 2 | 1 | 06, 07, 08 | 129 | 17, 28 | |
| 
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| 32 | 
 | 3 | 1 | 06, 07, 08 | 129 | 17, 28 | |
| 
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| 32 | 
 | 4 | 1 | 06, 07, 08 | 129 | 17, 28 | |
| 
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| 50 | 
 | 1 | Time and Date | 1, 2 | 07 (Note 1) | 129 | 07 | 
| 
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| 60 | 
 | 1 | Class 0 Data (Note 2) | 1 | 06 | 129 | 
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| 
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| 60 | 
 | 2 | Class 1 Data (Note 3) | 1 | 06, 07, 08 | 129 | 
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| 
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| 60 | 
 | 3 | Class 2 Data (Note 3) | 1 | 06, 07, 08 | 129 | 
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| 
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| 60 | 
 | 4 | Class 3 Data (Note 3) | 1 | 06, 07, 08 | 129 | 
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| 
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| 80 | 
 | 1 | Internal Indications | 2 | 00 (Note 4) | 129 | 
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| 
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| 
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 | No object - Cold Start | 13 | 
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| 
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| 
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 | No object - Warm Start | 14 | 
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| 
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| 
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 | No object - Delay Measurement (Note 5) | 23 | 
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Default Variations The following table specifies the default variation for all objects returned by the relay. These are the variations that will be returned for the object in a response when no specific variation is specified in a request.
Table 4: Default Variations
| OBJECT | DESCRIPTION | DEFAULT | 
| 
 | 
 | VARIATION | 
| 
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| 
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 | 
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| 1 | Binary Input - Single Bit | 1 | 
| 
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| 2 | Binary Input Change With Time | 2 | 
| 
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| 10 | Binary Output Status | 2 | 
| 
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| 20 | 6 | |
| 
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| 21 | 10 | |
| 
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| 30 | 3 | |
| 
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| 32 | 1 | |
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| 48 | 
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