Mitsubishi FX3U-232-BD User Manual page 517

FX Series PLC User's Manual - Data Communication Edition
Non-Protocol Communication (RS/RS2 Instruction)
12.2.9 Communication format setting [D8120]
This device sets the communication format.
1. Detailed contents
This device can set the data length, parity, baud rate, etc.
The table below shows the contents of the communication format setting.
Bit No.
b0 Data length
b1
b2
b3
b4
b5 Baud rate
b6
b7
b8
b9 Terminator
b10
Control line
b11
b12
*1
Sum check
b13
*1
b14
*1
Control procedure
b15
*1. Make sure to set as "0" when using non-protocol communication.
*2. When using the RS-485/RS-422 interface, only FX
FX PLCs are applicable.
3UC
2. Cautions on use
In all PLCs except FX
When setting the communication format in FX
backed) device (M8120) to ON.
12.2.10 Amount of remaining send data [D8122]
This device stores the amount of remaining send data.
1. Detailed contents
This device stores the amount of remaining send data in 8-bit (1 byte) units.
Only data in communication frames are regarded as targets of counting.
Name
0 (bit = OFF)
b2, b1
(0, 0): Not provided
Parity
(0, 1): Odd
(1, 1): Even
Stop bit
b7, b6, b5, b4
(0, 0, 1, 1): 300
(0, 1, 0, 0): 600
(bps)
(0, 1, 0, 1): 1200
(0, 1, 1, 0): 2400
Header
b11, b10
(0, 0): Not provided <RS-232C interface>
Non-
(0, 1): Standard mode <RS-232C interface>
protocol
(1, 0): Interlink mode <RS-232C interface>
commu-
nication
(1, 1): Modem mode
<RS-232C interface, RS-485/RS-422 interface
Com- b11, b10
puter (0, 0): RS-485/RS-422 interface
link (1, 0): RS-232C interface
Protocol
(FX), FX , and FX
2 2C 0N
Contents
7-bit
1-bit
b7, b6, b5, b4
(0, 1, 1, 1): 4800
(1, 0, 0, 0): 9600
(1, 0, 0, 1): 19200
Not provided Provided (D8124) Initial value: STX (02H)
Not provided Provided (D8125) Initial value: ETX (03H)
(FX whose version is Ver. 2.00 or later, FX
2N
Not applicable
Not added
Not used
Format 1
, FX , FX
1S 0N
PLCs, the communication format can be set using parameters.
PLCs, set the communication setting latched (battery
0N
12 Related Data
12.2 Details of related devices (RS instruction)
1 (bit = ON)
8-bit
2-bit
, FX , and FX
3U 2NC
*2
>
Added
Used
Format 4
, FX , FX , FX , FX
1N 2N 3U 1NC
A
B
C
D
E
)
3UC
F
G
, and
2NC
H
I
Apx.
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