DVP-ES3 Series Programming Manual 5. S 7 is the length of written data with the unit of byte. 6. S 8 is the starting address of the devices where written data are stored in the order from low bit to high bit. 7. S 9 is the communication timeout time. The range of the setting value is 1~100 and the unit is 0.1s (second). 8. S 10 is the number of retransmission times and the range is 0~3. When the communication timeout occurs, the communication will be transmitted again. 9. D 3 displays the read or write error code. 10. D 4 is the read data length with the unit of byte. 11. D 5 is the starting address of the devices where read data are stored in the order from low bit to high bit. _6 12.
D 1 is the communication completion flag and D 2 is the error flag. See the detailed communication sending procedure and sequence diagram. The DNETRW instruction is enabled for the first time and the command will be sent out immediately if the instruction is not be occupied by other DeviceNet communication. The command is being sent. The data sending is completed and the completion flag or error flag changes to On according to the response. The next message is ready to be sent out. The next command is sent out right after the completion flag or error flag is cleared. The command sending is completed and the DNETRW instruction is disabled.
6-594 Error code Description Code 1 (High Byte) Code 2 (Low Byte) XX FF Not conform with DeviceNet standard 20 01 The target slave does not exist. 20 02 Making the connection with the slave failed. 20 03 Sending the explicit message failed. 16 00 Communication timeout