Note the following if the message frame length of the received characters does not match the
congured xed message frame length:
• Message frame length of received characters greater than congured xed message frame
length:
All characters received after the parametered xed message frame length is reached
– is discarded if the monitoring time expires at the end of the message frame.
– Is merged with the next message frame if a new message frame is received before the
monitoring time expires.
• Message frame length of received characters less than parametered xed message frame
length:
The message frame
– Is discarded if the monitoring time expires at the end of the message frame.
– is merged with the next message frame if a new message frame is received before the
monitoring time expires.
The gure below illustrates a receive operation with the end criterion "xed message frame
length".
Basic Principles of Serial Data Transmission
2.4 Data Transmission with the ASCII Driver
Point-to-point connection CP 440 Installation and Parameter Assignment
30 Equipment Manual, 03/2022, A5E00057742-AE