FX1S-20MT-ESS/UL Mitsubishi FX1S Series PLC, UL-Certified Compact Controller, ESS Module

FX1S-20MT-ESS/UL

Mitsubishi FX1S-20MT

20MT-ESS/UL Controller

FX1S-20MT-ESS/UL

The Mitsubishi FX1S-20MT-ESS/UL is a compact 20MT-ESS/UL Controller designed for industrial automation, offering reliable PLC performance with UL certification for safety compliance.

Specification

SEODescription

The Mitsubishi FX1S-20MT-ESS/UL is a compact programmable logic controller (PLC) designed for basic automation tasks, featuring 12 digital inputs and 8 transistor outputs. This 20MT-ESS/UL Controller supports direct connection to limited expansion modules, including analog and communication adapters, though its scalability is restricted compared to higher-end models. It integrates a built-in RS-422 programming port for communication with Mitsubishi's GX Developer software but lacks advanced networking interfaces like Ethernet. Operating at 24V DC within a temperature range of 0–55°C, the FX1S-20MT-ESS/UL is UL-certified, ensuring compliance with North American safety standards. Ideal for small-scale industrial applications such as packaging machinery, conveyors, and simple process control, its key advantages include cost-effectiveness, user-friendly programming, and a space-saving design. However, its limited I/O capacity and minimal expansion options make it unsuitable for complex systems.

SEOSpecification

Parameter	Specification
Model	FX1S-20MT-ESS/UL (Mitsubishi FX1S-20MT Series)
Controller Type	20MT-ESS/UL Micro Programmable Logic Controller
I/O Configuration	14 Inputs / 10 Transistor Outputs
Power Supply	24V DC ±10%
Power Consumption	20W (Max)
Program Memory	2K Steps (EEPROM)
Data Memory	512 Words (Backup by capacitor)
Built-in Functions	High-speed counter, Pulse output (Y0: 100kHz)
Communication Port	RS-422 (Programming port)
Programming Software	Mitsubishi GX Developer/GX Works2
Operating Temperature	0°C to 55°C
Certification	UL, CE, RoHS compliant

SEOQandA

question:What shipping methods do you offer?
answer:We support DHL, Fedex, UPS, and other major shipping methods.
question:What is the warranty policy?
answer:Products come with a 1-year warranty covering manufacturing defects.
question:Do you have a product selection team?
answer:Yes, our professional team selects competitive, market-tested products.

SEOQandA_Product

question:How to resolve communication failure between FX1S-20MT-ESS/UL and programming software?
answer:Check communication cable integrity, verify correct COM port settings, ensure baud rate matches, and confirm proper driver installation for the programming interface.
question:Why do input/output modules not respond after power-up?
answer:Verify wiring connections, confirm power supply stability, check I/O module status LEDs, and ensure no short circuits or overloads in the circuit.
question:How to fix program upload/download errors in FX1S-20MT-ESS/UL?
answer:Ensure GX Works2 or compatible software version is installed, validate communication settings, reset PLC to default, and check for port conflicts or hardware faults.
question:What causes erratic PLC behavior or unexpected shutdowns?
answer:Inspect power supply voltage (must be 24V DC ±10%), check for loose terminal connections, replace faulty power modules, and ensure proper grounding.
question:How to troubleshoot program execution errors or stuck routines?
answer:Review ladder logic for infinite loops, validate timer/counter settings, monitor scan time via diagnostics, and use software debugging tools to isolate faulty instructions.