FX3U is a product with main features. This manual introduces the names and functions of its parts, machine structure and specifications, I/O numbering methods, overall system composition, installation methods, power circuit specifications and external wiring, input specifications and external wiring, etc.
About this manual
This manual provides detailed information on the FX3U PLC series, including system configuration, power specifications, and wiring diagrams for both input and output modules. It also describes the use of special modules, battery maintenance, and the built‑in memory structure.
Additional sections cover programming fundamentals, instruction lists, and troubleshooting procedures, helping users to set up, operate, and maintain the controller safely and efficiently. This manual is written in Chinese.
What's inside
- System configuration and specifications
- Power supply and wiring examples
- Input and output module wiring
- Special module installation
- Battery and power backup
- Programming instructions and instruction list
- Memory and data registers
- Maintenance and troubleshooting
Specifications
| Input voltage | DC24V |
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| Flash memory type | FLASH |
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| Maximum memory size | 16K bits |
Frequently asked questions
What input voltage does the FX3U PLC use?
The FX3U PLC uses a DC24V supply for its I/O modules.
How can the watchdog timer be configured?
The watchdog timer can be set or modified through the PLC program.
What type of memory does the FX3U contain?
The controller includes FLASH memory for program storage.
What is the maximum built‑in memory size for the FX3U?
The FX3U can be equipped with up to 16K bits of memory.