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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.
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