1. General Description

• Model: 140EIA92100C

• Brand: Schneider Electric

• Series: Modicon Quantum

• Function: AS‑i Master (Profile M2)

• Coating: Yes (conformal coated)

• Slave Capacity: 31 standard / 62 single‑I/O

• Transmission Rate: 167 kbit/s

2. Key Differences from 140EIA92100

• 140EIA92100: Standard (no coating), general industrial use.

• 140EIA92100C: Conformal‑coated PCB, enhanced resistance to moisture, dust, chemical vapors, and condensation; ideal for water treatment, food & beverage, marine, or outdoor cabinets.

3. Specifications (Same as 140EIA92100, plus coating)

3.1 AS‑i Bus Interface

• Connector: 3‑pin SUB‑D (AS‑i line, +30 V DC, GND)

• Bus Voltage: 18–30 V DC

• Bus Current: ≤120 mA

• Cycle Time: 156×(n+1) μs (n = number of slaves)

• Isolation: 500 Vrms (bus‑to‑backplane)

• Polarity Protection: Internal (reverse‑voltage protected)

3.2 Backplane Power

• Voltage: 5 V DC

• Current: 185 mA typical / 250 mA max

• Power Dissipation: ≤1.25 W

3.3 I/O Capacity

• Standard Slave: 4 in + 4 out (1 byte)

• Single‑I/O Slave: 2 in or 2 out (0.5 byte)

• Max I/O: 124 inputs + 124 outputs

3.4 Environmental & Mechanical

• Operating Temp: 0 °C to +60 °C

• Storage Temp: −40 °C to +85 °C

• Humidity: 5–95 % non‑condensing

• Protection: IP20 (module), conformal coated (PCB)

• Dimensions: 104 × 40 × 250 mm (single slot)

• Weight: ~0.45 kg

• Certifications: CE, UL, CSA, RoHS

4. Front Panel LEDs & Controls

• B (Bus) – Green: Flashing = active communication.

• Active – Green: On = controlled by Quantum CPU.

• F (Fail) – Red: Steady = hardware fault; Flashing = bus/slave fault.

• 0–31 (Green): On = slave present & active.

• Buttons: Mode (Normal/Diagnostic), Address (0–31 scroll).

5. Installation & Wiring

• Coating note: Avoid scratching the conformal coating during installation; do not apply additional coatings.

• Wiring: Use shielded twisted‑pair AS‑i cable; max length 100 m (standard) / 300 m (repeaters).

6. Configuration

• Software: EcoStruxure Control Expert (Unity Pro) v8.0+

• Profile: M2

• I/O Mapping: 8 words in / 8 words out + status words (LAS/LDS)

7. Applications

• Harsh environments: Humidity, dust, condensation, light chemical exposure.

• Water/wastewater, food & beverage, pharmaceuticals, marine, outdoor cabinets.

• Standard AS‑i use cases: Sensors, actuators, valves, motor starters via 2‑wire bus.

8. Diagnostics & Troubleshooting

• Active Off: Backplane power, seating, CPU RUN status.

• B Not Flashing: Bus voltage, wiring, slave addresses (no 0), shorts.

• F Steady: Hardware fault (replace module).

• F Flashing: Missing slave, address conflict, profile mismatch.

• Coating care: If coating is damaged, inspect for corrosion; repair with compatible conformal coating if needed.

9. Reference Documents

• Manual: Modicon Quantum 140EIA92100 User Manual (applies to both 140EIA92100 and 140EIA92100C)

• Publication No.: 35012420K01000 (Rev 07, 12/2018)

• Coating Note: 140EIA92100C = 140EIA92100 + conformal coating