![[OMRON] — E3S-DC Color Mark Photoelectric Sensor (RGB 3-LED, IO-Link, Diffuse Reflective)](https://prosourcemro.com/wp-content/uploads/2026/05/001-4-1024x698.png)
Fiber Optic
Omron
[OMRON] — E3S-DC Color Mark Photoelectric Sensor (RGB 3-LED, IO-Link, Diffuse Reflective)
Family ID: OMRON-E3S-DC
Color mark photoelectric sensor with RGB 3-color LED (Red 635nm + Green 525nm + Blue 465nm) for stable detection on glossy aluminum-vapor-deposited packaging, colorful printed packaging with subtle color differences, and packaging with lot-to-lot color variation. Standalone diffuse-reflective M12 sensor (no fiber required) — compact 80×54×56mm zinc die-cast IP67 housing. Thin projection beam + large lens optics keeps detection stable even when workpiece tilts. 9x S/N ratio improvement vs E3ZM-V via 3-LED light source plus high-efficiency optical design. Hi dynamic range covers black to mirror-like surfaces without saturation. Easy 2-button teaching (MARK + BKGD) for quick setup. Fast 50μs response (2-point teaching). 11 color discrimination + black. ⭐ IO-Link models (E3S-DCP21-IL2/IL3) transmit 0~4095 RGB values to PLC for color variation database management — root-cause analysis on color drift issues, optimal threshold tuning, and design-stage validation. Push-pull (IO-Link models) or NPN output. 10-30 VDC. M12 4-pin connector. Sensor I/O cables (XS2F or XS5W series, M12 4-pin, 2m or 5m, straight or L-shaped) sold separately — see separate listing.
3 product codes available in this family
Product Codes & Specifications
| Product Code | Description | Brand | Spec | ||
|---|---|---|---|---|---|
| E3S-DCP21-IL2 | OMRON E3S-DCP21-IL2 color mark photoelectric sensor, push-pull output, IO-Link COM2, M12 4-pin connector. | OMRON | Output: Push-pull | Communication: IO-Link COM2 (38.4 kbps) | Detection Method: Diffuse reflective (color mark detection) | Sensing Distance: 10 ±3 mm (white drawing paper 10×10mm, 1×4mm projection spot) | Light Source: Red LED (635 nm) + Green LED (525 nm) + Blue LED (465 nm) — 3-color LED light source with high-efficiency optics | Power Supply: 10 to 30 VDC, ripple (p-p) 10% max. | Power Consumption: 960 mW max. (40 mA @ 24 VDC) | Control Output: Push-pull (IL2/IL3) or NPN open-collector, 100 mA max., 30 VDC max. | Indicators: Operation (orange), RUN (green, blinking during IO-Link), 7-segment (white, BANK number), Key Lock (white), Timer (white), 1-point teaching mode (white) | Response Time: 50 μs operate/reset (2-point teaching mode) / 150 μs operate/reset (1-point teaching mode) | Sensitivity Setting: Teaching method (1-point or 2-point with MARK/BKGD buttons) | Operation Mode: Push-pull: NO (mark=High) / NC. NPN: NO (mark=ON) / NC. | Connection: M12 4-pin connector (90° rotatable) | Protection: IP67 (per IEC 60529) | Ambient Temperature: -10°C to 55°C operating, -25°C to 70°C storage | Ambient Humidity: 35% to 85% RH operating, 35% to 95% storage (no condensation) | Insulation Resistance: 20 MΩ min. (at 500 VDC) | Dielectric Strength: 1,000 VAC at 50/60 Hz for 1 minute | Vibration Resistance: 10-55 Hz, 1.5mm double amplitude, 2 hours each axis (X/Y/Z) | Shock Resistance: 500 m/s² × 3 times each axis | Material: Case: Zinc die-cast (nickel-plated) | Lens: PMMA | Display: ABS | Buttons: Elastomer | Connector: Zinc die-cast (nickel-plated) | Weight: Approx. 370g (packed) / 320g (unit only) | 11 Color Standard Discrimination: White (Munsell N9.5), Red (4R 4.5/12.0), Yellow-Red, Yellow, Yellow-Green, Green, Blue-Green, Blue, Blue-Violet, Violet, Magenta + Black (N2.0) | Compatible Cables (sold separately): XS2F single-ended (M12 straight or L-shaped, 2m/5m) / XS5W double-ended smart click (M12 straight or L-shaped, 2m/5m) — see separate listing | ||
| E3S-DCP21-IL3 | OMRON E3S-DCP21-IL3 color mark photoelectric sensor, push-pull output, IO-Link COM3 high-speed, M12 4-pin connector. | OMRON | Output: Push-pull | Communication: IO-Link COM3 (230.4 kbps) — high-speed | Detection Method: Diffuse reflective (color mark detection) | Sensing Distance: 10 ±3 mm (white drawing paper 10×10mm, 1×4mm projection spot) | Light Source: Red LED (635 nm) + Green LED (525 nm) + Blue LED (465 nm) — 3-color LED light source with high-efficiency optics | Power Supply: 10 to 30 VDC, ripple (p-p) 10% max. | Power Consumption: 960 mW max. (40 mA @ 24 VDC) | Control Output: Push-pull (IL2/IL3) or NPN open-collector, 100 mA max., 30 VDC max. | Indicators: Operation (orange), RUN (green, blinking during IO-Link), 7-segment (white, BANK number), Key Lock (white), Timer (white), 1-point teaching mode (white) | Response Time: 50 μs operate/reset (2-point teaching mode) / 150 μs operate/reset (1-point teaching mode) | Sensitivity Setting: Teaching method (1-point or 2-point with MARK/BKGD buttons) | Operation Mode: Push-pull: NO (mark=High) / NC. NPN: NO (mark=ON) / NC. | Connection: M12 4-pin connector (90° rotatable) | Protection: IP67 (per IEC 60529) | Ambient Temperature: -10°C to 55°C operating, -25°C to 70°C storage | Ambient Humidity: 35% to 85% RH operating, 35% to 95% storage (no condensation) | Insulation Resistance: 20 MΩ min. (at 500 VDC) | Dielectric Strength: 1,000 VAC at 50/60 Hz for 1 minute | Vibration Resistance: 10-55 Hz, 1.5mm double amplitude, 2 hours each axis (X/Y/Z) | Shock Resistance: 500 m/s² × 3 times each axis | Material: Case: Zinc die-cast (nickel-plated) | Lens: PMMA | Display: ABS | Buttons: Elastomer | Connector: Zinc die-cast (nickel-plated) | Weight: Approx. 370g (packed) / 320g (unit only) | 11 Color Standard Discrimination: White (Munsell N9.5), Red (4R 4.5/12.0), Yellow-Red, Yellow, Yellow-Green, Green, Blue-Green, Blue, Blue-Violet, Violet, Magenta + Black (N2.0) | Compatible Cables (sold separately): XS2F single-ended (M12 straight or L-shaped, 2m/5m) / XS5W double-ended smart click (M12 straight or L-shaped, 2m/5m) — see separate listing | ||
| E3S-DCN21 | OMRON E3S-DCN21 color mark photoelectric sensor, NPN open-collector, standard I/O, M12 4-pin connector. | OMRON | Output: NPN open-collector | Communication: Standard I/O only (no IO-Link) | Detection Method: Diffuse reflective (color mark detection) | Sensing Distance: 10 ±3 mm (white drawing paper 10×10mm, 1×4mm projection spot) | Light Source: Red LED (635 nm) + Green LED (525 nm) + Blue LED (465 nm) — 3-color LED light source with high-efficiency optics | Power Supply: 10 to 30 VDC, ripple (p-p) 10% max. | Power Consumption: 960 mW max. (40 mA @ 24 VDC) | Control Output: Push-pull (IL2/IL3) or NPN open-collector, 100 mA max., 30 VDC max. | Indicators: Operation (orange), RUN (green, blinking during IO-Link), 7-segment (white, BANK number), Key Lock (white), Timer (white), 1-point teaching mode (white) | Response Time: 50 μs operate/reset (2-point teaching mode) / 150 μs operate/reset (1-point teaching mode) | Sensitivity Setting: Teaching method (1-point or 2-point with MARK/BKGD buttons) | Operation Mode: Push-pull: NO (mark=High) / NC. NPN: NO (mark=ON) / NC. | Connection: M12 4-pin connector (90° rotatable) | Protection: IP67 (per IEC 60529) | Ambient Temperature: -10°C to 55°C operating, -25°C to 70°C storage | Ambient Humidity: 35% to 85% RH operating, 35% to 95% storage (no condensation) | Insulation Resistance: 20 MΩ min. (at 500 VDC) | Dielectric Strength: 1,000 VAC at 50/60 Hz for 1 minute | Vibration Resistance: 10-55 Hz, 1.5mm double amplitude, 2 hours each axis (X/Y/Z) | Shock Resistance: 500 m/s² × 3 times each axis | Material: Case: Zinc die-cast (nickel-plated) | Lens: PMMA | Display: ABS | Buttons: Elastomer | Connector: Zinc die-cast (nickel-plated) | Weight: Approx. 370g (packed) / 320g (unit only) | 11 Color Standard Discrimination: White (Munsell N9.5), Red (4R 4.5/12.0), Yellow-Red, Yellow, Yellow-Green, Green, Blue-Green, Blue, Blue-Violet, Violet, Magenta + Black (N2.0) | Compatible Cables (sold separately): XS2F single-ended (M12 straight or L-shaped, 2m/5m) / XS5W double-ended smart click (M12 straight or L-shaped, 2m/5m) — see separate listing |
