1. General Description

• Model: 140EIA92100

• Brand: Schneider Electric

• Series: Modicon Quantum

• Role: AS‑i Master (Profile M2)

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

• Transmission Rate: 167 kbit/s

2. Specifications

2.1 AS‑i Bus Interface

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

• Bus Voltage: 18–30 V DC (from AS‑i power supply)

• Bus Current: ≤120 mA (30 V DC)

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

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

• Polarity Protection: Internal (reverse‑voltage protected)

2.2 Backplane Power

• Voltage: 5 V DC

• Current: 185 mA typical / 250 mA max

• Power Dissipation: ≤1.25 W

2.3 I/O Data (Per Slave)

• Standard Slave: 4 inputs + 4 outputs (1 byte I/O)

• Single‑I/O Slave: 2 inputs or 2 outputs (0.5 byte I/O)

• Total I/O (Max): 124 inputs + 124 outputs (62 slaves)

2.4 Environmental & Mechanical

• Operating Temp: 0 °C to +60 °C

• Storage Temp: −40 °C to +85 °C

• Humidity: 5–95 % non‑condensing

• Protection: IP20 (module)

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

• Weight: ~0.32 kg

• Certifications: CE, UL, CSA, RoHS

3. Front Panel LEDs & Controls

3.1 LED Indicators

• B (Bus) – Green: Flashing = active data exchange with slaves.

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

• F (Fail) – Red:

  • Steady: Module hardware/configuration fault.

  • Flashing: Bus fault (slave address 0, missing slave, or config mismatch).

• 0–31 (Green): One LED per slave address; On = slave present & active.

3.2 Push Buttons

• Mode: Toggle between Normal and Diagnostic display modes.

• Address: Scroll slave addresses (0–31) for diagnostics.

4. Installation & Wiring

1. Power off Quantum rack and AS‑i power supply.

2. Insert module into any empty slot; secure screws.

3. Connect AS‑i bus cable to 3‑pin SUB‑D:

   • Pin 1: AS‑i signal (±)

   • Pin 2: +30 V DC (from AS‑i PSU)

   • Pin 3: GND

4. Use twisted‑pair, shielded cable for AS‑i bus; max length 100 m (standard) / 300 m (with repeaters).

5. Power on rack and AS‑i PSU; verify Active and B LEDs flash.

5. Configuration (EcoStruxure Control Expert / Unity Pro)

1. Add 140EIA92100 to hardware configuration.

2. Set AS‑i Master Profile: M2.

3. Define List of Projected Slaves (LPS): Assign addresses 1–31; set slave type (standard/single‑I/O).

4. Map I/O Data:

   • PLC Inputs: 8 words (124 bits) = AS‑i slave inputs.

   • PLC Outputs: 8 words (124 bits) = AS‑i slave outputs.

   • Status Words: LAS (List of Active Slaves), LDS (List of Detected Slaves).

5. Download configuration; check F LED (off = OK).

6. Operating Modes

6.1 Normal Mode

• Automatic cyclic data exchange with all configured slaves.

• Real‑time I/O update (167 kbit/s).

• LAS/LDS status bits indicate slave health.

6.2 Diagnostic Mode

• Activate via Mode button.

• View slave‑specific errors:

  • Address conflict

  • Slave missing

  • Profile mismatch

  • Communication errors