Mitsubishi FX3G Series Programming Manual

162
FX3G/FX3U/FX3GC/FX3UC Series
Programming Manual - Basic & Applied Instruction Edition
6 What to Understand before Programming
6.1 How to Read Explanation of Instructions
Applicable devices
Devices which can be specified in operands of instructions are shown.
When a device supports an instruction, "3" is added to the device.
*1. Kn without specification indicates K1 to K4 for 16 bits, and K1 to K8 for 32 bits.
Explanation of function and operation
The function of each instruction is explained.
Cautions
Cautions on using each instruction are described.
Errors
Major errors that are possible to occur in each instruction are described.
For details on errors, refer to "Chapter 38. Error Check Method and Error Code List".
Program examples
Concrete program examples using each instruction are described.
1) Bit devices
•X : Input relay (X)
•Y : Output relay (Y)
•M : Auxiliary relay (M)
•S : State relay (S)
etc.
2) Word devices
•K : Decimal integer
•H : Hexadecimal integer
•KnX: Input relay (X) with digit specification
*1
•KnY: Output relay (Y) with digit specification
*1
•KnM: Auxiliary relay (M) with digit specification
*1
•KnS: State relay (S) with digit specification
*1
•T : Timer (T) current value
•C : Counter (C) current value
•D : Data register (file register)
•V, Z: Index register
•Modify: Availability of indexing using index register
etc.

Mitsubishi FX3G Series Specifications

General

Model	FX3G Series
Power Supply	AC 100-240V or DC 24V
Program Capacity	32, 000 steps
Execution Speed	0.21 µs/basic instruction
Communication Options	RS-422, USB, Ethernet
Expansion Modules	Analog, digital, communication
Programming Language	Ladder Logic, Instruction List
Built-in Functions	High-speed counters, pulse output
Analog I/O	Available via expansion modules