Mitsubishi MELSEC User Manual

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12.3 Error Code List
12
TROUBLESHOOTING
12.3 Error Code List
The QS series CPU module uses the self diagnostics function to display error information
(LED indication) and stores the information into the special relay SM and special register
SD, when an error occurs in the following situations:
• When the PLC is powered ON.
• When the CPU module is reset.
• When the CPU module is switched from STOP to RUN.
• While the CPU module is running.
If an error occurs when a communication request is issued from GX Developer, intelligent
function module or network system to the CPU module, the CPU module returns the error
code (4000
H
to 4FFF
H
) to the request source.
The following describes the description of errors which occur in the CPU module and the
corrective actions for the errors.
(1) How to read the error code list
The following describes how to read Section 12.3.3 Error code list (1000 to 1999) to
Section 12.3.8 Error code list (8000 to 9000).
(a) Error code, common information and individual information
Alphanumeric characters in the parentheses of the titles indicate the special
register numbers where each information is stored.
(b) Compatible CPU
QS: Compatible with the QSCPU.

Mitsubishi MELSEC Specifications

General

Category	Programmable Logic Controller (PLC)
Manufacturer	Mitsubishi Electric
Series	MELSEC
Programming Languages	Ladder Diagram (LD), Function Block Diagram (FBD), Structured Text (ST), Instruction List (IL), Sequential Function Chart (SFC)
Communication Protocols	Ethernet, CC-Link, RS-232, RS-485, USB, Profibus, Modbus
Model Series	FX, Q, L, iQ-R, iQ-F
Input Voltage	100-240V AC, 24V DC (varies by model)
Memory Capacity	Varies widely depending on the CPU module and series. Ranges from kilobytes to megabytes.
I/O Points	16 to 8192 points (varies by model)
Communication Ports	Ethernet, RS-232, RS-485, USB (varies by model)
Programming Software	GX Works2, GX Works3, GX Developer
Operating Temperature	0°C to 55°C
Storage Temperature	-25°C to 75°C
Humidity	5% to 95% (non-condensing)
Vibration Resistance	10 to 57Hz, 0.075mm amplitude; 57 to 150Hz, 9.8m/s² acceleration
Shock Resistance	147m/s², 3 times in each direction (X, Y, Z)
Protection Class	IP20 (varies by model)
CPU Processing Speed	0.02μs to 0.1μs per instruction (varies by model)