Procedure For Transmission Processing - Panasonic FP2 ET-LAN Technical Manual

9.4.2 Procedure for Transmission Processing

Transmission processing timing chart
Execution procedure when sending data
The data to be sent in the transmission buffer.
The size of the data to be sent is set in the transmission request data size parameter in the
connection information setting area.
The transmission request signal is turned on.
When the transmission processing from the ET-LAN unit to the communication circuit has been
successfully completed, the transmission complete signal goes on.
After confirmation has been made that the transmission complete signal is on, the transmission
request signal should be turned off.
When the transmission request signal has been turned off, the transmission complete signal goes off.
If the transmission processing is not successfully completed for some reason, the transmission error
signal goes on.
To re-try the processing, first turn the transmission request signal off.
When the transmission request signal goes off, the transmission error signal goes off. Always make
sure that the transmission error signal has turned off before re-sending the data.
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