Mitsubishi FX3G PLC — Mid-Range Compact Controller

Mitsubishi FX3G PLCs bridge the gap between entry-level and high-performance compact controllers, offering 0.21 microsecond execution speed, 32K step program memory, and built-in RS422 plus USB communication as standard. The FX3G supports dedicated analog expansion modules including the FX3G-1DA and FX3G-1AD for cost-effective mixed signal control. Flextech Industrial supplies the full FX3G range across Malaysia with programming support and fast delivery.

Key Features and Performance

Mitsubishi FX3G PLCs process basic instructions in 0.21 microseconds with 32,000 steps of program memory, delivering reliable performance for mid-complexity automation applications. The FX3G base units range from 14 to 60 I/O points, expandable to 128 I/O using right-side expansion blocks and left-side adapter modules.

Built-in communication on the Mitsubishi FX3G includes both RS422 and USB ports as standard on every base unit. The USB port enables direct laptop programming without a dedicated cable converter, reducing commissioning time and eliminating a common point of failure. An optional communication board adds RS232 or RS485 capability for multi-drop networking.

The FX3G supports dedicated low-cost analog modules: the FX3G-1AD provides one channel of analog input (0-10V or 4-20mA), and the FX3G-1DA provides one channel of analog output. These compact modules mount directly on the FX3G base unit without requiring a special function block adapter, keeping system cost and panel space to a minimum.

High-speed counter inputs on the Mitsubishi FX3G handle up to 100 kHz single-phase and 50 kHz two-phase encoder signals. Three axes of pulse output at up to 100 kHz support stepper motor and servo positioning. Both sink and source input wiring are supported, providing flexibility for connecting both NPN and PNP sensors.

GX Works2 programming software provides ladder diagram, structured text, and function block programming for the FX3G. Programs are backward-compatible with FX3U project structures, simplifying migration between platforms.

Technical Specifications

Applications in Malaysian Industry

Mitsubishi FX3G PLCs serve Malaysia’s diverse manufacturing landscape where mid-range control performance meets practical cost constraints. Food and beverage bottling lines use the FX3G for fill level control with the FX3G-1AD analog module reading level sensors directly.

Rubber product manufacturers in Malaysia deploy FX3G controllers for vulcanisation press sequencing with temperature feedback through analog inputs. Small-scale water treatment systems across Malaysian municipalities use the FX3G for pump alternation and chemical dosing control. Under NIMP 2030, Malaysian SMEs adopt the FX3G as a cost-effective automation platform that delivers Mitsubishi reliability without the investment level of higher-tier FX3U or iQ-R controllers.

Mitsubishi FX3G vs Alternatives

Mitsubishi FX3G PLCs position between the entry-level FX3S and the high-performance FX3U in the Mitsubishi compact PLC hierarchy. Compared to the FX3S, the FX3G offers double the program capacity (32K vs 16K), three-axis positioning versus two axes, and dedicated analog expansion modules. Against the FX3U, the FX3G trades execution speed (0.21 µs vs 0.065 µs) and maximum I/O count (128 vs 256) for a lower unit price. For applications requiring analog I/O without a large expansion budget, the FX3G with FX3G-1AD/1DA modules offers the most economical Mitsubishi solution.

Why Source from Flextech Industrial

Flextech Industrial stocks the Mitsubishi FX3G range in Malaysia including base units, expansion blocks, and FX3G-1AD/1DA analog modules. Our engineers assist with I/O sizing, analog module selection, and GX Works2 programming support. Every FX3G ships with full Mitsubishi warranty and our local technical backup.

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Frequently Asked Questions

What analog modules are compatible with the Mitsubishi FX3G?

Mitsubishi FX3G supports dedicated FX3G-1AD (1-channel analog input) and FX3G-1DA (1-channel analog output) modules that mount directly on the base unit. For additional analog channels, standard FX3U special function modules connect through a right-side expansion adapter.

Can the FX3G replace an older FX2N system?

Mitsubishi FX3G PLCs accept converted FX2N programs through GX Works2 with minor modifications. The FX3G supports both sink and source inputs, resolving the FX2N’s sink-only limitation. I/O addressing differs slightly, requiring terminal assignment verification during migration.

How many I/O points does the FX3G support in total?

Mitsubishi FX3G PLCs expand to 128 I/O points maximum using right-side expansion blocks (FX3G-CNV-ADP adapter required for special function modules). Base units start at 14 I/O and scale to 60 I/O before expansion. This range suits most standalone machine control applications in Malaysia.

Does the FX3G support Ethernet communication?

Mitsubishi FX3G PLCs do not include built-in Ethernet. Ethernet connectivity requires the FX3U-ENET-ADP module connected through the left-side adapter port. For applications requiring native Ethernet, the FX5U series provides built-in Ethernet as standard.

What is the price range for FX3G PLCs in Malaysia?

Flextech Industrial provides competitive pricing for Mitsubishi FX3G PLCs in Malaysia. Pricing varies by base unit size and expansion configuration. Contact our sales team with your I/O requirements for an accurate quotation including any analog modules and communication accessories needed.