DeviceNet Network Scanner DVPDNET-SL
1.Structure of request message See the table below:
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| Request Message |
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| 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 |
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D6250 |
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| ReqID |
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| Command |
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| Message Header |
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D6251 |
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| Port |
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| Size |
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D6252 |
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| Service Code |
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| MAC ID |
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D6253 |
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| High byte of Class ID |
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| Message Data |
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D6254 |
| High byte of Instance ID |
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D6255 |
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| Reserved |
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| Attribute ID (optional) |
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D6256 ~ D6281 |
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| Service Data |
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Command: Fixed to “01Hex”.
ReqID: The request ID. Whenever an explicit message is sent out, the message will be given a ReqID for
00Hex ~ FFHex.
Size: The length of the message, starting from D6253. The high bytes of D6255 are reserved. When the data length is being calculated, D6255 is counted as 1 byte. The maximum data length is 58 bytes. Errors will occur when the length is longer than 58 bytes. Unit: byte.
Port: The communication port. Fixed to “00Hex".
MAC ID: The node address of the target equipment on DeviceNet.
Service Code: The service code of the explicit message. See the meanings of the codes in the table below:
Service Code | Explanation |
01Hex | Read all attributes (Get_Attribute_All) |
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02Hex | Set up all attributes (Set_Attribute_All) |
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0EHex | Read a single attribute (Get_Attribute_Single) |
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10Hex | Set up a single attribute (Set_Attribute_Single) |
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2.Structure of response message See the table below:
PLC device |
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| Response Message |
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| 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
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D6000 |
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| ReqID |
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| Message Header |
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D6001 |
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| Port |
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D6002 |
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| Service Code |
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| MAC ID |
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D6003 ~ 6031 | Message Data |
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| Service Response Data |
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The definitions of ReqID, Port, Service Code and MAC ID are the same as their definitions in request message.
Size: The length of the message, starting from D6003. Max. 58 bytes. Errors will occur when the
length is longer than 58 bytes. Unit: byte.
See the table below for the meanings of Status (status codes):
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