Chapter 6 Server function and P2P service
6-15
[Figure 6.2.18] Segment variable sized variable conversion setting screen
When configuring transmission frame, it uses 2 words of PLC memory M100 and in case of
changing Hex to ASCII, in case h34353637 is saved M100, each segment of transmission frame
changes into “h4567”. And in case of changing part of received frame to Hex and saving it, if each
area is “h4567”, it is converted and h34353637 is saved.
B) Swap
▪ 2 byte: 2 byte swap relevant part among TX/RX frame
▪ 4 byte: 4 byte swap relevant part among TX/RX frame
▪ 8 byte: 8 byte swap relevant part among TX/RX frame
If swapping h1234567811223344 by each method, it changes like the followings.
- 2 byte swap: 0x3412785622114433
- 4 byte swap: 0x7856341244332211
- 8 byte swap: 0x4433221178563412
5) Transmission frame
To send frame, you should register wanted transmission frame. In case of not using P2P XGT client
and user defined frame, the following is example writing 4 word data from M100 to destination
station 0.
TX.Frame Head Body Tail
Frame 0x05 00 wSB 06%MW100 04
Variable
sized
variable
0x04 BCC
Reference
Numerical
constant
String
constant
String
constant
String
constant
String
constant
Hex To
ASCII
Conversion
Numerical
constant
Byte
Checksum
ASCII
conversion
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