Mitsubishi Electric MELSEC FX Series - Communication Format <BFM#0; Command

FX communication
FX
2N
-232IF 10
10-4
10.2.2 Communication Format <BFM#0>
The communication format is determined on the rising edge of the send/receive enable
command (BFM #1 b0).
Accordingly, the communication format setting should be preliminary transferred using the TO
instruction before BFM #1 b0 is turned ON. Also, the send header and terminator are determined
by the rising edge of the send command (BFM #1 b1). The receive header and the receive
terminator are determined on the rising edge of BFM #1 b0 or on the rising edge of the receive
completion reset command (BFM #1 b2). Accordingly, when only the header and the terminator
are exclusively changed it is not necessary to turn BFM #1 b0 OFF. The change becomes valid
form the next send/receive operation.
Bit Description 0 1 Initial value
b0
Data length 7 bit 8 bit 1 : 8 bit
b1
b2
Parity
b1
(00) : None
(01) : Odd
(11) : Even
(11) : Even
b3
Stop bit 1 bit 2 bit 0 : 1 bit
b4
b5
b6
b7
Baud rate (bps)
b4
(0011) : 300
(0100) : 600
(0101) : 1200
(0110) : 2400
(0111) : 4800
(1000) : 9600
(1001) : 19200
(1000) : 9600 bps
b8
b9
Control line
b8
(00) : Unused
(01) : Standard RS-232C
(11) : RS-232C interlink connection mode
(00) : Unused
b10
b11
Addition of CR and LF
b10
(00) : Not added
(01) : CR only
(11) : CR and LF
(00) : Not added
b12
b13
Availability of check
sum and ASCII/HEX
conversion
b12
(00) : Not available
(01) : ASCII/HEX conversion available
(10) : Check sum available
(11) : Check sum available, ASCII/HEX conversion
available
(00) : Not available
b14
Send/receive buffer
data length
16 bit 8 bit 0 : 16 bit
b15
Unused

0 : Unused