Vigor VS Series - Page 407

401
RS D0 K5 D100 K10 K1
X20
D9101 the number
of data remaining
to be transferred
Data sending out
(TXD)
PLC→Peripheral
Data received
(RXD)
PLC ← Peripheral
Ready for
receiving
End
of Text
4
3
2
1
0
4
3
2
1
5
0
S
m
D
n
Number of sending out data Bytes is designated by
m
n1
Divide the 16-bit data into two
Bytes of data: Upper 8 bits
data and Lower 8 bits data.
Start
of Text
A 16-bit data
Upper 8 bits
Lower 8 bits
Conditional contact
X20 to active the
instruction
Data sending out
request ag M9100
STX
D0
Upper 8 Bits
D1
Upper 8 Bits
D2
Lower 8 Bits
ETX
STX ETX
D0
Lower 8 Bits
D1
Lower 8 Bits
D100
Upper 8 Bits
D101
Upper 8 Bits
D100
Lower 8 Bits
D101
Lower 8 Bits
End
of Text
Start
of Text
n
Number of received Bytes is designated by
Ready for
receiving
D9102 the number
of received data
The data receive
completed ag M9101
Reset by the program
Not reset by the
program
Description of Data Sending / Receiving (by the CP1): 16-bit Mode (M9161 = "OFF")
Either one of the condition below is completed will cause the receive completed ag M9101 “ON” and stop to
receive.
The number of assigned bytes is satised.
The End of Text is received.
The occurrence of Time-out.
1
2
3
n