DeviceNet Network Scanner DVPDNET-SL 2) Structure of response message See the table below: „ 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): 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 Response Message PLC device 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 D6000 Message Header ReqID Status D6001 Port Size D6002 Service Code MAC ID D6003 ~ 6031 Message Data Service Response Data 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