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FX3G/FX3U/FX3UC Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
2 Overview (Sequence Program)
2.7 Types and Setting of Parameters
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
2. On "Special Function Block Settings" dialog box, set the initial values of special function blocks
and units.
The "Special Function Block Settings" tab is available only in FX3U/FX3UC PLCs.
*1. Input buffer memory addresses (BFM numbers) that in the connected special function block/unit hold.
*2. To each buffer memory address (BFM number), set a value within the allowed range in the connected special
function block/unit.
*3. Refer to the manual of the connected special function block/unit.
Set item Contents of setting Setting range
"Unit No." tab Select the unit number of a special function block/unit to be set. –
Unit Name
Set the name of a special function block/unit whose initial values are to be set.
(The contents set on "I/O assignment" tab are displayed.)
32 half-width
characters
(or 16 full-width char-
acters)
No.
This column indicates the order of initial value setting in the selected unit
number.
Numbers 1 to 98 can be set.
–
Address
Set the buffer memory address (BFM number) in a decimal value whose initial
value is to be set.
*1
Comment
This column is displayed when device comments are registered.
On the above screen, "Input mode of CH1 to CH4" is registered as the device
comment for "U0\G0" (unit No. 0, BFM #0).
–
Value
Set a value to be set as the initial value of the buffer memory address (BFM
number).
Set the data length and type of the set value in "Size/Type" column.
*2
Size/Type
Select the size and type of a value set to the buffer memory among the
following:
16bit/DEC
32bit/DEC
16bit/HEX
32bit/HEX
–
Insert This button inserts a line in the currently selected position. –
Delete This button deletes the currently selected line. –
Up
This button moves the cursor to the upper line (transposes the upper line).
–
Down
This button moves the cursor to the lower line (transposes the lower line).
–
Check the identification code
before initializing
Put a check mark to check the model code of the special function block/unit
before initialization.
–
Identification code Set the model code of the special function block/unit. *3
This example shows a
window in an FX
3U/FX3UC
PLC.