Delta DVP-0204520-03 - Manual (Page 19)

DeviceNet Network Scanner DVPDNET-SL
2) Structure of response message
See the table below:
Response Message
PLC device
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
D6000 ReqID Status
D6001 Port Size
D6002
Message Header
Service Code MAC ID
D6003 ~ 6031 Message Data Service Response Data
„ 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):
Status Explanation
0 No explicit message is sent out.
1 The communication of explicit message is successful.
2 The explicit message is being sent out.
3 Error: No response from the target equipment.
4 Error: Command is invalid.
5 Error: Size of request message is invalid.
6 Error: Size of response message is invalid.
7 Error: Failing to establish a connection to the target equipment.
8 ~ 255 Reserved
3) Notes:
„ DVPDNET-SL can only send out 1 explicit message at a time.
„ Before sending explicit message by using WPL program, we suggest you clear the request message
editing area and response message editing area to 0.
„ If the slave responds with standard error code, and DVPDNET-SL also consider the communication
being successful, “The communication of explicit message is successful.” will indicate that the
communication has been completed successfully.
DVP-PLC Operation Manual 16