Chapter 8 Communication Functions 8-71
8.4.4 Examples
Assume that a electrical weighing machine sends data which has unfixed size continuously. MASTER-K120S can communicates with it
using no protocol.
For no protocol communication, one of following ending condition is designated. One is size of received data and the other is whether it
has some pre-defined data.
In this example, assume that received data is as following.
“ ENQ(1Byte) + Station No.(1Byte’) + Data(1~10 Words) + EOT(1Byte)”
When ab ove frame is received, Received framed is saved to designated device If designated ‘Receiving Format(Cw)’ is h0104. and
decides if use these data or not. After that, sends data which is in sending device if required.
Assume that the sending data format is as following.
“ ACK(1Byte) + Station No.(1Byte’) + OK(2Bytes) + EOT(1Byte)”
In this example the size of received data is 1 word.
MASTER-K120S Main unit
Electrical weighing machine