Mitsubishi FX3U-232-BD User Manual page 286

FX Series PLC User's Manual - Data Communication Edition
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9.2.9 Communication format setting [D8120 and D8420]
These devices set the serial communication format.
1. Detailed contents
These devices set the serial communication format. In FX
PLCs, the contents set in parameters are transferred to these devices when the power is turned ON.
In FX , FX (FX) and FX
0N 2
ON the power.
In all PLCs except FX
Set the communication format using parameters when using the communication port ch2 in FX
PLCs.
Use D8420 for confirmation.
The tables below show the setting details.
• Contents of D8120
Bit No.
b0
b1
b2
b3
b4
b5
b6
b7
b8
b9
b10
b11
b12
b13
b14
b15
D-84
PLCs, set the communication format using a sequence program, and then turn
2C
and FX PLCs using communication port ch1, use D8120.
3U 3UC
Name
Data length
b2, b1
(0, 0): Not provided
Parity
(0, 1): Odd
(1, 1): Even
Stop bit
b7, b6, b5, b4
(0, 0, 1, 1): 300
Baud rate
(0, 1, 0, 0): 600
(bps)
(0, 1, 0, 1): 1200
(0, 1, 1, 0): 2400
Header
Terminator
Com- b11, b10
Control line puter (0, 0): RS-485/RS-422 interface
link (1, 0): RS-232C interface
Sum check
Protocol
Control
procedure
, FX
1S 1N
Contents
0 (bit = OFF)
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
Not provided
Not applicable
Not added
Not used
Format 1
9.2 Details of Related Devices
, FX , FX , FX , FX
2N 3U 1NC
1 (bit = ON)
8-bit
2-bit
Provided (D8124) Initial value: STX (02H)
Provided (D8125) Initial value: ETX (03H)
Added
Used
Format 4
9 Related Data
and FX
2NC 3UC
and FX
3U 3UC