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FX3S/FX3G/FX3GC/FX3U/FX3UC Series
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
3. FX3U/FX3UC PLCs
Caution
•The FX
3U/FX3UC PLCs can store symbolic information in the following capacity:
-The FX
3U-FLROM-1M (memory cassette) has an area dedicated to the storage of symbolic information, and can
store up to 1300 kB.
- When storing the symbolic information in any memory cassette other than the FX
3U-FLROM-1M or to the built-in
memory, make sure that amount of the symbolic information to be stored does not exceed the available memory
capacity.
It is recommended to use the FX
3U-FLROM-1M when there is a large amount of symbolic information to be
stored.
Symbolic information capacity = Maximum capacity of memory cassette - Memory capacity set by parameters
It is possible to check the symbolic information capacity using the memory capacity calculation (offline) of GX Works2.
→ Refer to the GX Works2 Version 1 Operating Manual (Common) for details.
• When symbolic information is stored, it is deleted if the memory capacity set by parameters is changed.
After changing the memory capacity, write the symbolic information again.
2.7.4 Compatible optional memory model
1. FX3S/FX3G PLCs
*1. The FX3S Series PLC can hold 16,000 steps of memory, but user program capacity is limited to 4,000 steps.
2. FX3U/FX3UC PLCs
*2. Can be used with FX3UC PLCs Ver. 2.20 or later.
*3. Ver. 3.00 or later is applicable.
~ Built-in memory capacity Can be set by changing parameter
Memory capacity
setting
Unit: Step
Comment capacity
setting
Unit: Block
File register
capacity setting
Unit: Block
Special unit initial
value setting
Unit: Block
Built-in
positioning setting
Unit: Block
Built-in
CC-Link/LT Setup
Unit: Block
2000 0 to 3 0 to 3 – – 1
4000 0 to 7 0 to 7 – – 1
8000 0 to 15 0 to 14 8 – 1
16000 0 to 31 0 to 14 8 18 1
32000 0 to 63 0 to 14 8 18 1
64000 ~ 0 to 127 0 to 14 8 18 1
Model name
Maximum number of
steps
Memory type
Allowable number of
times of writing
Remarks
FX3G-EEPROM-32L
32000
*1
EEPROM
memory
10000 times
Write-protect switch and loader
function are provided.
Model name
Maximum number of
steps
Memory type
Allowable number of
times of writing
Remarks
FX3U-FLROM-64 64000 Flash memory 10000 times Write-protect switch is provided.
FX3U-FLROM-16
*2
16000 Flash memory 10000 times Write-protect switch is provided.
FX3U-FLROM-64L
*2
64000 Flash memory 10000 times
Write-protect switch and loader
function are provided.
FX3U-FLROM-1M
*3
64000 Flash memory 10000 times
Write-protect switch and there is an
area (1300 kB) dedicated to the
storage of symbolic information.