Communication Sequence - Panasonic VL-W1-N Series Setup And Maintenance Manual

6-2-3 Communication sequence

„ Communication sequence of setting/readout request data
When the requested data was received normally from the external device, the laser welding machine transmits response
data for normal receiving to the setting request data and transmits readout data to the readout request data.
When the request data cannot be accepted, the laser welding machine transmits response data for abnormal receiving.
After sending the command, confirm the response data from the laser welding machine. Do not send the next command
before receiving the response.
External device
Send
Receive
Send
Receive
• The time-out duration of this product is set to 5 seconds from receiving the communication data from the head till the
end transmitted from the external device. If a reception time-out occurs, the communication data transmitted will be
discarded and the laser welding machine will not transmit the response data. To resume the communication, transmit the
correct data once again.
132
Setting request for power output mode
Response for normal or abnormal receiving (OK/NG)
Readout request for power output mode
Response for readout or for abnormal receiving
ME-VLW1N-SM-1
Laser welding machine
Receive
Send
Receive
Send