Description
Product Introduction
The Schneider Electric Modicon Quantum 140CRP93200 is a dedicated Remote I/O (RIO) head processor module engineered to establish high-speed, deterministic communications between a central Quantum CPU rack and distributed remote I/O drops. Operating over high-grade coaxial media at a transmission rate of 1.544 Mbps, it offloads remote rack scanning and data aggregation directly from the main processor.
Equipped with dual coaxial connectors (Ports A and B), the 140CRP93200 supports redundant cable media topologies. If a primary coaxial run is severed or damaged in the field, the card instantly routes data across the secondary cable without interrupting PLC logic execution or dropping remote I/O stations. This hardware-level redundancy makes it a staple in continuous-process industries where network uptime is mandatory.
Key Technical Specifications
| Parameter | Value |
| Manufacturer | Schneider Electric / Modicon |
| Part Number | 140CRP93200 |
| Platform | Modicon Quantum Automation Series |
| Module Type | Remote I/O (RIO) Head Processor |
| Transmission Media | Dual Coaxial Cable (RG-6 or RG-11, 75 Ohm) |
| Data Rate | 1.544 Mbps |
| Max Network Drops | Supports up to 31 Remote I/O Drops (140CRA93100/140CRA93200) |
| Topology Support | Bus, Tree, or Star with Dual-Cable Redundancy |
| Maximum Distance | Up to 15,000 ft (4,500 m) with repeaters |
| Bus Current Requirement | 600 mA at 5 VDC |
| Diagnostics | Front panel LEDs for Active, Line A/B Fault, and RIO Health |
Application Scenarios & The “Trench” Experience
The Trench Story: It is 2:15 AM at a paper mill’s wet-end processing line. A forklift accidentally snags and severs the primary coaxial trunk line feeding a remote I/O rack located 400 feet away near the pulper. Thanks to the dual-cable architecture of the local 140CRP93200 head module, communication seamlessly flips to Channel B with zero dropped scan cycles. The “Line A Fault” light turns amber on the rack, alerting maintenance to repair the cut cable during scheduled downtime rather than suffering an emergency mill shutdown costing $25,000 in lost production.
Application Scenarios:
- Pulp & Paper Processing: Linking central control rooms to distributed valve banks and motor control centers across long wet-end sections.
- Water & Wastewater Infrastructure: Coordinating distant filter basins, chemical feed skids, and sludge handling racks from a central CPU rack.
- Mining & Conveyor Systems: Managing distributed I/O stations strung along long overland belt conveyors and stacker/reclaimers.
- Oil & Gas Tank Farms: Collecting remote valve position feedback and tank level data across wide plant footprints using dual coaxial runs.

140CRP93200

140CRP93200
Transparency SOP: Quality Assurance & Testing
We do not just ship boxes; we test them on actual Modicon Quantum racks. Every 140CRP93200 RIO head module undergoes a strict 5-step validation procedure prior to stocking:
- Inbound Physical Check: Thorough inspection of backplane connector pins, housing latches, front panel LED lenses, and BNC coaxial connector threads for physical wear or corrosion.
- Quantum Bus Handshake: Seated in a live Quantum rack (e.g., 140CPU65160) to verify backplane bus communications and power rail integrity.
- Dual-Cable RIO Drop Simulation: Connected via dual RG-6 coaxial cables to a live 140CRA93200 drop rack loaded with digital and analog I/O modules.
- Redundancy Failover Testing: Disconnecting Channel A under live, heavy I/O data traffic to verify that Channel B takes over instantly without dropping I/O health bits or tripping CPU faults.
- ESD Clearance & Safe Packaging: Thoroughly cleaned, treated against static buildup, sealed in static-shielding bags, and foam-packed to survive transit shock.
The Veteran’s Tech Trap Guide
⚠️ Don’t forget the 75-Ohm BNC terminators! Both ends of each coaxial cable trunk line (Channel A and Channel B) must be terminated with a high-quality 75-Ohm BNC terminator. Missing or improper 50-Ohm terminators (commonly used in legacy Ethernet) will cause signal reflections, resulting in intermittent dropouts across all remote racks.
❗ Check your coaxial cable crimps. Over 80% of unexplained RIO drop errors stem from poor BNC connector crimps or cheap TV-grade RG-6 cable. Always use dual-shield or quad-shield industrial-grade 75-Ohm coaxial cable and verify pin crimps with a cable tester before pulling wire.
⚠️ Mind the drop address settings on the CRA cards! While the CRP93200 acts as the master head, each remote drop card (140CRA93200) has rotary switches setting its drop address (1 to 31). Duplicate drop addresses will lock up the RIO network bus entirely.
❗ Never run coaxial cables alongside high-voltage VFD leads. Although coaxial cable offers decent shielding, running RIO coax in the same wire tray as 480V VFD motor leads will induce high-frequency electrical noise, degrading the 1.544 Mbps signal and causing cable failover alarms.
Frequently Asked Questions
Q: Can I hot-swap the 140CRP93200 module while the Quantum CPU rack is powered?
A: Yes, the Quantum platform supports Removal and Insertion Under Power (RIOC). However, pulling the CRP module will immediately sever communication to all connected remote I/O drops, which may cause downstream field equipment to fail safe or fault out.
Q: What is the main difference between the 140CRP93100 and the 140CRP93200?
A: The primary difference is cable redundancy support. The 140CRP93100 is a single-cable RIO head module, whereas the 140CRP93200 features dual coaxial connectors to support full dual-cable media redundancy.
Q: Can I mix fiber optics with the 140CRP93200 module?
A: Yes, but you must use compatible Modicon coaxial-to-fiber converters (such as 140NOA61100 or external fiber modems) to convert the coaxial signal to fiber optic for long-distance runs or high-noise environments.
Q: Does the 140CRP93200 require special programming software configuration?
A: Yes, the RIO network map—including drop numbers and I/O module allocations—must be configured within your programming environment (Concept, ProWORX, or EcoStruxure Control Expert / Unity Pro) under the I/O bus configuration section.
Q: What warranty comes with these discontinued Quantum RIO cards?
A: Every unit comes backed by a 12-month operational warranty. We bench-test both coaxial channels under live failover conditions on a live Quantum drop rack prior to shipment to ensure factory-level performance out of the box.




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