140CRA21210C
Description
140CRA21210C
Modicon Quantum DIO Drop Interface Module
115/230 VAC, 1 Redundant Port, Conformal Coated
English User Manual / Datasheet (Full Version)
1. General Description
C suffix: Conformal coating for humid, dusty, corrosive environments (coated PCB).
Function: Connects Quantum backplane to remote DIO stations via serial link; supports redundant ring communication.
Key Difference from 140CRA21210: Conformal coated (harsh environment version).
2. Electrical Specifications (AC Power)
Rated Voltage: 115 / 230 VAC (auto‑sensing)
Operating Range: 85 … 276 VAC
Frequency: 47 … 63 Hz
Input Current (max):
0.2 A @ 115 VAC
0.4 A @ 230 VAC
Inrush Current:
10 A @ 115 VAC
20 A @ 230 VAC
Power Rating: 50 VA
Power Dissipation: ~11 W
Backplane Output: 5.1 VDC / 3 A nominal
Min. Load Current: 0 A
Fuse Rating (Recommended): 1.5 A
Protection:
Short‑circuit protection
Output overvoltage protection
Buffer Time: ≤ 1 ms
3. I/O Capacity
Input Words: 30
Output Words: 32
Isolation Voltage: 500 VDC (channel‑to‑backplane)
4. Communication
Protocol: Modbus‑compatible DIO (Distributed I/O)
Ports: 1 × redundant DIO port (7‑pole terminal block)
Topology: Point‑to‑point / multidrop / redundant ring
Cable: Shielded twisted pair
Termination: Software‑selectable TERM
5. Environmental (Coated Version Enhanced)
Operating Temperature: 0 °C … +60 °C
Storage Temperature: −40 °C … +85 °C
Relative Humidity: 5% … 95% non‑condensing
Altitude: ≤ 5,000 m
Shock/Vibration: Industrial standard
ESD Immunity: 4 kV contact / 8 kV air
EM Field Immunity: 10 V/m (80–2000 MHz)
Conformal Coating: Yes (140CRA21210C only) – protection against moisture, dust, chemicals, and corrosion.
6. Physical & Mechanical
Dimensions: Standard Quantum single slot
Mounting: Quantum backplane (hot‑swap capable)
LED Indicators:
PWR: Green = Power OK
COM: Green blinking = Communication active
ERR: Red = Fault (comm loss / config error)
PORT: Green = Link up

7. Installation & Wiring
7.1 Mounting
Power OFF the Quantum rack.
Insert module into any single‑slot position.
Latch and tighten screw.
7.2 AC Power Wiring (115/230 VAC)
L: Line (Live)
N: Neutral
PE: Protective Earth
Wire size: 0.75–2.5 mm²
Warning: Verify voltage before powering ON.
7.3 DIO Communication Wiring
Connect shielded twisted pair to the DIO port (7‑pole terminal block).
Shield: Ground at one end only (PE).
Redundant mode: Single port with redundant ring topology.
8. Configuration (Unity Pro)
Add 140CRA21210C in hardware catalog.
Set DIO address (1–63).
Enable redundancy (single port ring).
Assign I/O map: 30 In / 32 Out words.
Download configuration to PLC.
9. Operation & LED Status
PWR ON: Module powered.
COM Blinking: Data exchange active.
ERR Steady Red: Communication loss / remote drop fault.
ERR Flashing: Address conflict / config mismatch.
PORT Green: Link up.
10. Certifications
CE
UL 508
CSA C22.2 No.142 / Class 1 Div 2
C‑Tick, DNV, GOST
RoHS compliant
11. Ordering Information
140CRA21210: Standard (non‑coated), 115/230 VAC, 1 redundant DIO port
140CRA21210C: Conformal coated (harsh environment), 115/230 VAC, 1 redundant DIO port
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