32 × 124 Full-Colour Display
SMD2121 RGB LEDs, 3 mm pixel pitch, 16-bit colour, 800–1200 cd/m² brightness. Clearly visible in factory and industrial ambient lighting.
Product
LED_O
A compact round RGB LED display unit for machine status, alarm indication, and industrial signage. 24 V DC powered, Modbus TCP controlled, HTTPS configurable. CE and UKCA certified. Built in the UK.
Key Features
Built around what PLC engineers and machine builders actually need.
Native Modbus TCP
FC03, FC06, and FC16 supported. Drive text, shapes, bitmaps, scroll speed, and alarm colours directly from your PLC holding registers.
HTTPS Web Interface
Built-in web server for commissioning and live display control. Accessible from any browser — no software, no app, no licence required.
Alarm Thresholds & Colour Change
Set independent high and low alarm limits with configurable colours. Accepts integer or floating-point values. Replaces traditional stack lights.
24 V DC, Reverse-Polarity Protected
Powered directly from a standard 24 V panel supply. Built-in reverse-polarity, over-current, and over-voltage protection as standard.
CE / UKCA Certified, UK Built
Designed and manufactured in Stoke-on-Trent. CE and UKCA marked. Support direct from the engineers who built it.
Specifications
| Display Type | Round RGB LED Array |
|---|---|
| Resolution | 32 × 124 pixels |
| Pixel Pitch | 3 mm |
| LED Type | SMD2121 RGB |
| Colour Depth | 16-bit RGB (65,536 colours) |
| Brightness | 800–1200 cd/m² |
| Viewing Angle | ≥140° |
| Refresh Rate | ≥1920 Hz |
| Supply Voltage | 24 V DC ±10% |
| Current Consumption | 1.1 A |
| Power Protection | Reverse-polarity, over-current, over-voltage |
| Communication | Ethernet — Modbus TCP (port 502) / HTTPS (ports 80, 443) |
| Modbus Functions | FC03, FC06, FC16 |
| Default IP Address | 10.0.0.49 |
| Dimensions | W 100 × H 428.5 × D 100 mm |
| Weight | 1.25 kg |
| Enclosure | ABS + Polycarbonate diffuser |
| Ingress Protection | IP40 / IP54 |
| Operating Temperature | 0 °C to 60 °C |
| LED Lifetime | >50,000 h (L70) |
| Firmware Update | Ethernet (internal service tool) |
| Certifications | CE / UKCA |
Interested in LED_O?
Contact us to discuss your application, request a sample, or get a quote.