F-84
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.
This setting is available only in FX
3S
, FX
3G
, FX
3GC
, FX
3U
and FX
3UC
PLCs.
*2.
When using the RS-485/RS-422 interface, only FX
0N
, FX
1S
, FX
1N
, FX
1NC
, FX
2N
, FX
2NC
, FX
3S
, FX
3G
,
FX
3GC
, FX
3U
and FX
3UC
PLCs are applicable.
*3.
Make sure to set as "0" when using non-protocol communication.
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
(1, 0, 1, 0): 38400
*1
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
PLCs Ver. 2.00 or later, and FX
2NC
, FX
3S
, FX
3G
, FX
3GC
,
FX
3U
, FX
3UC
PLCs)
(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
*3
Sum check
Not added
Added
b14
*3
Protocol
Not used
Used
b15
*3
Control procedure
Format 1
Format 4
Summary of Contents for FX-485ADP
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Page 120: ...B 2 FX Series PLC User s Manual Data Communication Edition N N Network ...
Page 188: ...C 2 FX Series PLC User s Manual Data Communication Edition Parallel Link ...
Page 244: ...D 2 FX Series PLC User s Manual Data Communication Edition Computer Link ...
Page 344: ...E 2 FX Series PLC User s Manual Data Communication Edition Inverter Communication ...
Page 700: ...H 2 FX Series PLC User s Manual Data Communication Edition Programming Communication ...
Page 752: ...I 2 FX Series PLC User s Manual Data Communication Edition Remote Maintenance ...
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