140CRA31908C

Modicon M580 to Quantum S908 RIO Drop Adapter

24 VDC, S908 Bus + Ethernet Service Port

Conformal Coated for Harsh Environments

English Datasheet / User Manual (Full Version)

1. General Description

• C suffix: Conformal coated PCB for humid, dusty, corrosive environments (oil & gas, water/wastewater, marine, food & beverage).

• Function: Acts as a S908 RIO master from M580 backplane to old Quantum S908 drops (e.g., 140CRA21110, 140CRA31200).

• Migration Key: Lets you keep existing S908 wiring & I/O while upgrading CPU to M580.

• Non‑C counterpart: 140CRA31908 (standard, non‑coated).

• Form Factor: M580 single slot (X80 standard), hot‑swap capable.

• Status: Active standard migration product for harsh environments.

• 1 × S908 RIO (DB9, shielded, 1 Mbps)

• 1 × Ethernet Service (RJ45, 10/100 Mbps, Modbus TCP/Ethernet/IP)

  Power: 24 VDC (backplane‑fed)

  Weight: ~0.55 kg

  Protection: Conformal coated (moisture/dust/salt spray resistance)

  MTBF: 998,884 hours @ 30 °C; 480,089 hours @ 60 °C

2. Electrical Specifications

• Backplane Voltage: 24 VDC (M580 bus)

• Operating Range: 20 … 30 VDC

• Backplane Current: ~2.5 A

• Power Dissipation: ~12 W

• Isolation: 500 VAC (S908 ↔ backplane)

• Fuse (Recommended): 3 A slow‑blow

• Protection: Overvoltage, short‑circuit, reverse polarity

3. Communication

3.1 S908 RIO (Quantum Legacy)

• Protocol: S908 (Quantum proprietary RIO)

• Speed: 1 Mbps (fixed)

• Connector: DB9 (shielded)

• Topology: Multidrop / line (up to 31 drops)

• Distance: Max 3,000 m (with repeaters)

• I/O per Drop: Up to 128 In / 128 Out words

• Compatibility: All 140CRAxxx S908 drops (211/212/312 series)

3.2 Ethernet Service Port

• Protocols: Modbus TCP, Ethernet/IP (diagnostics only)

• Speed: 10/100 Mbps auto‑negotiation

• Connector: RJ45

• Use: Programming, monitoring, firmware update (Unity Pro)

4. Environmental (Coated Enhanced)

• Operating Temperature: 0 °C … +60 °C

• Storage Temperature: −40 °C … +85 °C

• Relative Humidity: 5% … 95% non‑condensing

• Altitude: ≤ 5,000 m

• Shock: 15 g, 11 ms, 3 shocks/axis (IEC 60068‑2‑27)

• Vibration: 3.5 mm (0.5–8.4 Hz); 1 g (8.4–150 Hz)

• ESD Immunity: 4 kV contact / 8 kV air

• EM Field Immunity: 10 V/m (80–2000 MHz)

• Conformal Coating: Yes – protection against moisture, dust, salt spray, and corrosive gases.

5. Physical & Mechanical

• Dimensions: M580 single slot (105 × 180 × 265 mm)

• Mounting: M580 backplane, hot‑swap capable

• LED Indicators:

  • PWR (Green): Power OK

  • RUN (Green): Module active

  • S908 (Green Blink): RIO communication

  • ETH (Green Blink): Ethernet activity

  • ERR (Red): Fault (comm loss / config error)

6. Installation & Wiring

6.1 Mounting

1. Power OFF M580 rack.

2. Insert into any single‑slot position.

3. Latch and tighten screw.

6.2 S908 RIO Wiring (DB9)

• Use shielded twisted pair (Belden 9841 or equivalent).

• Pinout: S908 standard (Tx/Rx, GND, Shield).

• Shield: Ground at M580 end only.

• Termination: Enable at first/last drop (120 Ω).

6.3 Ethernet Wiring (RJ45)

• Connect to PC/HMI for Unity Pro programming.

• CAT5e/CAT6 shielded cable recommended.

7. Configuration (Unity Pro)

1. Add 140CRA31908C in M580 hardware catalog.

2. Enable S908 RIO Master function.

3. Assign drop addresses (1–31) for existing Quantum CRA drops.

4. Map I/O words (In/Out) to M580 memory.

5. Download configuration to M580 CPU.

8. Operation & LED Status

• PWR ON: Module powered.

• RUN Green: Module in operation.

• S908 Blinking: RIO data exchange active.

• ETH Blinking: Ethernet traffic.

• ERR Red: S908 link down / address conflict / config error.

9. Certifications

• CE (EN 55011, EN 61131‑2)

• UL 508, CSA C22.2 No.142

• C‑Tick, DNV, GOST

• Class I Div 2 (hazardous areas)

• RoHS compliant

10. Ordering Information

• 140CRA31908: Standard (non‑coated), M580 → S908 RIO Bridge

• 140CRA31908C: Conformal coated (harsh environment), same function