Communication processor and Modbus TCP
13.3 Point-to-point (PtP) communication
S7-1200 Programmable controller
System Manual, V4.2, 09/2016, A5E02486680-AK
1103
Example configuration: End message with a character sequence
Consider the following end message condition configuration:
In this case, the end condition is satisfied when two consecutive 0x6A characters are
received, followed by any two characters. The character preceding the 0x6A 0x6A pattern is
not part of the end character sequence. Two characters following the 0x6A 0x6A pattern are
required to terminate the end character sequence. The values received at character
positions 4 and 5 are irrelevant, but they must be received to satisfy the end condition.
Note
If you want your character s
equence to indicate the end of the message, put the sequence in
the last character positions. In the example above, if you wanted 0x6A 0x6A to end the
message with no trailing characters, you would configure 0x6A in character positions 4 and
5.
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