Mitsubishi FX3U-232-BD User Manual

F-70
FX Series PLC User's Manual - Data Communication Edition
Non-Protocol Communication (RS/RS2 Instruction)
10 When Combined with Another Communication
10.6 Communication Setting Method Using Sequence Program
10.6 Communication Setting Method Using Sequence Program
In the setting method using a sequence program, transfer values to the communication format device (D8120,
D8400 or D8420).
This section explains related devices and the setting method using a sequence program.
10.6.1 Communication setting for RS instruction
The following device is used in the communication setting.
1. D8120 (communication format)
By setting values to D8120, the data length, parity, baud rate, etc. can be set.
The table below shows the contents of D8120.
*1. Make sure to set as "0" when using non-protocol communication.
*2. When using the RS-485/RS-422 interface, only FX
1S, FX0N, FX1N, FX2N, FX3U, FX1NC, FX2NC, and
FX
3UC PLCs are applicable.
To set the communication type, use the following program.
Bit No. Name
Contents
0 (bit = OFF) 1 (bit = ON)
b0 Data length 7-bit 8-bit
b1
b2
Parity
b2, b1
(0, 0): Not provided
(0, 1): Odd
(1, 1): Even
b3 Stop bit 1-bit 2-bit
b4
b5
b6
b7
Baud rate
(bps)
b7, b6, b5, b4 b7, b6, b5, b4
(0, 0, 1, 1): 300 (0, 1, 1, 1): 4800
(0, 1, 0, 0): 600 (1, 0, 0, 0): 9600
(0, 1, 0, 1): 1200 (1, 0, 0, 1): 19200
(0, 1, 1, 0): 2400
b8 Header Not provided
Provided (D8124) initial value: STX (02H)
b9 Terminator Not provided Provided (D8125) initial value: ETX (03H)
b10
b11
Control line
Non-
protocol
commu-
nication
b11, b10
(0, 0): Not provided <RS-232C interface>
(0, 1): Standard mode <RS-232C interface>
(1, 0): Interlink mode <RS-232C interface>
(FX
2N whose version is Ver. 2.00 or later, FX3U, FX2NC, and FX3UC)
(1, 1): Modem mode
<RS-232C interface, RS-485/RS-422 interface
*2
>
Com-
puter
link
b11, b10
(0, 0): RS-485/RS-422 interface
(1, 0): RS-232C interface
b12 Not applicable
b13
*1
Sum check Not added Added
b14
*1
Protocol Not used Used
b15
*1
Control procedure Format 1 Format 4
Data length 7-bit
Parity Even
Stop bit 1-bit
Baud rate 9600 bps
Protocol Non-protocol
Header Not provided
Terminator Not provided
Control line Modem mode
M8002
FNC 12
MOV
H0C86 D8120
D8120 = [ 0000 1100 1000 0110 ]
b15 b0
0C86
Initial pulse

Mitsubishi FX3U-232-BD Specifications

General

Brand	Mitsubishi
Model	FX3U-232-BD
Category	Controller
Language	English