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Software installation 2
Data
• Sender PLC (Station 4) :
- The telegram is sent by application program text block TXT3,
- Start of transmission table = W100. The transmission table comprises the message
to send,
- There is no reception table.
• Detination PLC (station H'0C') :
- The message is received by application program text block TXT6,
- Start of reception table : W50,
- Length of reception table : 16 bytes,
- There is no transmission table.
Message transmission
• Text block :
- TXT3 is a TLG type NETWORK text block programmed for OUTPUT,
- TXT3,A = H'020C' destination address (Network 2 station H'0C'),
- TXT3,T = 6 : TXT6 is the destination text block,
- TXT3,L = 8 : Transmission of 8 bytes,
- W100 = Reception table address. As there is no reception table (length zero),
W100 corresponds to the transmission table address,
- Transmission table
W100
W101
W102
W103
4C (L)
41 (A)
52 (R)
41 (A)
45 (E)
4D (M)
38 (8)
20 (space)
• Telegram transmission
The telegram is sent from the master task :
< Transfer data to the transmission table
! W152[4] ∅ W100[4]
< Send telegram
! OUTPUT TXT3
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