H-51
FX Series PLC User's Manual - Data Communication Edition
Programming Communication
7 Troubleshooting
7.9 Operation mode display [D8419 and D8439] (FX3S, FX3G, FX3GC, FX3U, FX3UC)
A
Comm
on I
te
ms
B
N:
N N
etwo
rk
C
Paral
le
l Li
nk
D
Com
puter Li
nk
E
In
verter
C
omm
uni
cation
F
N
on-Proto
col
C
ommunicati
on
(R
S/RS
2 Instru
ction
)
G
No
n-
Protoc
ol
Co
mmuni
ca
tion
(FX
2N
-2
32IF)
H
Programm
ing
Comm
uni
cation
I
Re
mo
te
Ma
intenance
Apx.A
D
isco
nti
nued
models
4. Checking the error code
D8063 and D8438 store either of the following error codes:
*1.
In the FX
1N
, FX
1NC
, FX
2N
and FX
2NC
Series, a communication error may occur during automatic
alignment of the transmission speed when programming communication is executed while the
transmission speed of the peripheral equipment is set to 19.2 kbps because the transmission speed at
power ON is set to 9.6 kbps in the main unit.
Accordingly, when a communication error occurs at start of communication and problems are expected
if the error flag (special auxiliary relay) remains ON, clear the error flag for the corresponding channel.
When problems are expected if the error flag turns ON, execute programming communication after
setting the transmission speed of the peripheral equipment to 9.6 kbps at power ON of the PLC.
In other series, the error flag for the corresponding channel does not turn ON even if the transmission
speed is automatically aligned.
(The error code is stored in the special data register for the corresponding channel.)
7.9
Operation mode display [D8419 and D8439] (FX
3S
, FX
3G
, FX
3GC
, FX
3U
, FX
3UC
)
These devices store the communication type being used.
1. Detailed contents
These devices store the code of the communication type currently being used in the communication port.
When communication port ch1 is used, D8419 stores the communication type.
When communication port ch2 is used, D8439 stores the communication type.
The table below shows the contents of the communication type codes.
Error code
Contents of error
D8063 (ch1) D8438 (ch2)
6301
*1
3801
Parity error, overrun error or framing error
6302
3802
Defective communication character
6303
3803
Communication data sum mismatch
6304
3804
Defective data format
6305
3805
Defective command
6306
3806
Monitoring timeout
6307
3807
Modem initialization error
6308
3808
N:N Network parameter error
6309
3809
N:N Network setting error
6312
3812
Parallel link parameter error
6313
3813
Parallel link sum error
6314
3814
Parallel link format error
6320
3820
Inverter communication error
6321
3821
MODBUS communication error
6330
3830
Memory access error
6340
3840
Special adapter connection error
Code
Description
0
Programming communication
1
PP modem mode
2
Protocol dedicated to computer link
3
N:N Network
4
RS instruction
5
RS2 instruction
6
Parallel link
7
Inverter instruction
8
Variable analog potentiometer expansion board is used.
9
MODBUS communication
10
CF-ADP
11
ENET-ADP
12
Input/output expansion board is used.
Summary of Contents for FX-485ADP
Page 2: ......
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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