Operation Mode Display [D8419 And D8439] (Fx 3S , Fx 3G , Fx 3Gc , Fx 3U , Fx 3Uc ) - Mitsubishi Electric FX3U-232-BD User Manual

FX Series PLC User's Manual - Data Communication Edition
Programming Communication
4. Checking the error code
D8063 and D8438 store either of the following error codes:
Error code
D8063 (ch1) D8438 (ch2)
*1
6301
6302
6303
6304
6305
6306
6307
6308
6309
6312
6313
6314
6320
6321
6330
6340
*1. In the FX
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
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.
Code
0
1
2
3
4
5
6
7
8
9
10
11
12
7.9 Operation mode display [D8419 and D8439] (FX3S, FX3G, FX3GC, FX3U, FX3UC)
3801 Parity error, overrun error or framing error
3802 Defective communication character
3803 Communication data sum mismatch
3804 Defective data format
3805 Defective command
3806 Monitoring timeout
3807 Modem initialization error
3808 N:N Network parameter error
3809 N:N Network setting error
3812 Parallel link parameter error
3813 Parallel link sum error
3814 Parallel link format error
3820 Inverter communication error
3821 MODBUS communication error
3830 Memory access error
3840 Special adapter connection error
, FX , FX and FX
1N 1NC 2N 2NC
Programming communication
PP modem mode
Protocol dedicated to computer link
N:N Network
RS instruction
RS2 instruction
Parallel link
Inverter instruction
Variable analog potentiometer expansion board is used.
MODBUS communication
CF-ADP
ENET-ADP
Input/output expansion board is used.
Contents of error
Series, a communication error may occur during automatic
, FX
3S
Description
7 Troubleshooting
, FX , FX , FX
3G 3GC 3U
H-51
A
B
C
D
E
F
)
3UC
G
H
I
Apx.A