Mitsubishi MELSEC User Manual

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4.3 Switch Operation after Writing a Program
4
CPU MODULE
4.3 Switch Operation after Writing a Program
Programs can be written to the CPU module in either the STOP or RUN status.
(1) When writing a program with the CPU module set to "STOP"
(a) Set the RUN/STOP/RESET switch to STOP.
The "RUN" LED turns Off, and the module is placed in the STOP status.
Write a program from GX Developer to the CPU module in the STOP status.
(b) Reset with the RUN/STOP/RESET switch.
The CPU module is reset. ( Section 4.4)
(c) Set the RUN/STOP/RESET switch to RUN.
The "RUN" LED turns on, and the CPU module is placed in the RUN status.
(2) When writing a program during RUN
When writing a program during RUN, the operation for the RUN/STOP/RESET switch
is not required.
POINT
1. The program modified online during boot operation is written to the program
memory.
After making online program change, also write the program to the standard
ROM of the boot source memory. If the program is not written in the standard
ROM, the old program will be executed at the next boot operation.
For details of the boot operation, refer to the manual below.
QSCPU User's Manual (Function Explanation, Program Fundamentals)
2. To stop the CPU module, the remote operation of GX Developer can also be
used.
In this case, the operation for the RUN/STOP/RESET switch is not required.
For details on the remote operation of GX Developer, refer to the following
manual.
GX Developer Version 8 Operating Manual

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)