Mitsubishi FX3U Series Programming Manual

155
FX3G/FX3U/FX3GC/FX3UC Series
Programming Manual - Basic & Applied Instruction Edition
5 How to Specify Devices and Constants to Instructions
5.5 Bit Specification of a Word Device (D[ ].b)
1
Introduction
2
Overview
3
Instruction List
4
Devices in Detail
5
Specified the Device & Constant
6
Before Programming
7
Basic Instruction
8
FNC00-FNC09 Program Flow
9
FNC10-FNC19 Move & Compare
10
FNC20-FNC29 Arith. & Logic Operation
5.5 Bit Specification of a Word Device (D[ ].b)
By specifying a bit of a word device, the specified bit can be used as bit data.
When specifying a bit of a word device, use a word device number and bit number (hexadecimal).
(Example: D0.0 ... Indicates the bit 0 of data register (D).)
Indexing is not available for both device numbers and bit numbers.
Target word device : Data register or special data register
Bit number : 0 to F (hexadecimal)
5.6 Direct Specification of Buffer Memory (U[ ]\G[ ])
A buffer memory (BFM) of a special function block or special extension unit can be specified directly.
BFM is 16-bit or 32-bit word data, and is mainly used for operands in applied instructions.
For specifying a BFM, specify the unit number (U) of a special function block or special extension unit and the BFM
number (\G) consecutively.
(Example: U0\G0 ... Indicates the BFM #0 in the special function block or special extension unit whose unit number is
0.)
Indexing is available for BFM numbers.
The specification range is as follows:
Unit number (U).................... 0 to 7
BFM number (\G) ................ 0 to 32766
D0.F
D0.3
D0
F E D C B A 9 8 7 6 5 4 3 2 1 0
16 bits
Transfer
source
Transfer
destination
Unit number BFM #10
Example of MOV
instruction
Example of indexing
BFM number
FNC 12
MOV
K10 U0\G10
Transfer
source
Transfer
destination
FNC 12
MOV
K20
U0\G10Z0
Unit number BFM #(10 + Z0)

Mitsubishi FX3U Series Specifications

General

Brand	Mitsubishi
Model	FX3U Series
Category	Controller
Language	English