Mitsubishi MELSEC User Manual

12 - 18
12.2 Troubleshooting Flowchart
12.2.12 Flowchart for when the CPU cannot communicate with the GX Developer
12
TROUBLESHOOTING
12.2.12 Flowchart for when the CPU cannot communicate with the GX
Developer
The following shows the flowchart for when communication with peripheral device is
disabled at connecting the CPU module with GX Developer.
Can the CPU
communicate with the GX
Developer?
Can the CPU
communicate with the GX
Developer?
Connect the connection cable
properly.
Is the connection cable
connected properly?
Can the CPU
communicate with the GX
Developer by replacing the
connection cable?
Replace the
CPU module with
another one and check to see
if communication can be made
between the replaced CPU
module and GX
Developer.
NO
NO
NO
NO
YES
NO
Completed
The CPU cannot communicate
with the GX Developer.
YES
YES
YES
YES
NO
YES
Is the USB driver
installed in the personal
computer?
Please consult your local nearest
Mitsubishi or representative,
explaining a detailed description of
the problem.
Install the USB driver into
the personal computer.
Replace the replaced CPU module
with the original CPU module and
check to see if the CPU module
starts up normally.
(To next page)

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)