User`s manual

3-20
3.6 Connection
INP-TN5A0202-E
Setting of MELSEC-FX series
Start up GX-Developer, double-click [parameter] - [PC parameter] in the project tree, and then double-click [PC system setting (2)]
in the dialog box.
Select a desired channel, mark the "communication setting"check box, and then make a setting of the communication port of
your MELSEC-FX series as the following table.
Setting items Setting
Protocol Dedicated protocol communication (fi xed)
Data length 8 bits (fi xed)
Parity *1
Stop bit *1
Transmission speed *2
H/W type
With RS-232C: Normal/RS-232C
With RS-485: RS-485
Sum check Yes (fi xed)
Transmission control procedure Type 4 (CR, LF (fi xed))
St. No. setting 0 (fi xed)
Timeout determination time 1 (default setting)
*1 Same setting should be made as "PLC transmission setting" parameters
5-12
of a programless communication
module.
*2 Same setting should be made as "PLC communication speed setting" parameters
5-11
of a programless
communication module.
Terminal
vacant
vacant
vacant
vacant
vacant
vacant
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
LOADER
PUM-C
PWR
BUS
RX1
TX1
RX2
TX2
STATION
4
3
2
1
0
F
E
D
C
B
A
9
8
7
6
5
TX
RX













A(SD)
B(SD)

SG
SG
SG
A(RD)
B(RD)
RS-232C








A
B

 
RS-422RS-485





Communication terminal numbers and signal contents
The insulation between terminals is as follows. Before installing, confi rm that the insulation for the equipment meets usage
requirement.
RS-232C communication
RS-422 communication
RS-485 communication
Functional insulation (AC500V) Functional insulation (AC1000V)
Power supply
Loader communication
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