Transmission of data:

The transmit process or the process of storing a telegram to be transmitted in the corresponding buffer is initiated by a rising edge applied at input EN of the ETH_UDP_SEND block. The block confirms this process with a rising edge at output DONE. If an error occurred during this process (e.g. receive buffer full), this is indicated at output ERR. A telegram to be transmitted was only stored successfully in the corresponding transmit buffer if DONE = TRUE and ERR = 0. The variable to be used to store a transmit telegram has to be applied to block input DATA via the ADR operator.