Description
Schneider 140CRA93100
Schneider 140CRA93100 is a RIO remote I/O drop adapter module of the Modicon Quantum series, used to establish high-speed communication between the local CPU and remote I/O racks. It serves as a core component for building distributed control systems and expanding I/O points.
1. Positioning and System Relationship
System Affiliation
Belongs to the Schneider Electric Modicon Quantum PLC platform, model 140CRA93100, classified as a RIO (Remote I/O) Drop Adapter module. It is a standard single-slot module of the Quantum series and cannot operate independently. It must be installed in a remote I/O rack and used in conjunction with a RIO master module (such as 140CRP93100) in the local CPU rack via coaxial cable. It is exclusively compatible with the Quantum series and not compatible with other series such as Premium and M340.Core RolePositioned as the “remote I/O communication gateway” of the Quantum system. Core responsibilities: communicate with the local master via the S908 RIO protocol; receive and parse control commands from the CPU; collect data from all I/O modules in the remote rack and upload them to the CPU; provide data interfaces and power management for I/O modules in the remote rack; realize real-time data interaction between remote I/O and the local CPU.
Mounting Position
Mounted on the backplane of a Quantum remote rack, occupying one standard slot. The front of the module is equipped with multi-color LED status indicators (power, communication, fault) for convenient remote diagnosis. It uses a 75-ohm F-type right-angle coaxial connector to connect to the master station, supporting various network topologies such as daisy-chain and ring.System ArchitectureIntegrated into the Quantum distributed control chain:Local CPU rack (RIO master module 140CRP93100) → single 75Ω coaxial cable → remote I/O rack (RIO adapter 140CRA93100) → remote I/O modules (DI/DO/AI/AO).Bidirectional high-speed data transmission forms a distributed control architecture of “local control – remote execution”, allowing I/O points to be extended several kilometers away from the CPU.
2. Functions and Technical Features
1. High-Speed RIO Communication
- Communication protocol: dedicated high-speed S908 RIO protocol
- Transmission rate: 1.544 Mbps
- Connection medium: single 75‑ohm F‑type coaxial cable
- Expansion capacity: a single RIO network supports multiple drops; a single drop supports up to 27 I/O expansion modules
- Communication distance: supports long-distance communication to meet the needs of factory distributed layout
2. Highly Reliable Electrical Isolation
- Isolation voltage: 500V DC electrical isolation between coaxial center and ground
- Anti-interference performance: common-mode rejection ratio 35dB, strong resistance to industrial electromagnetic interference
- ESD protection: contact 4kV / air 8kV, in compliance with IEC 801-2 standard
3. Comprehensive Diagnosis and Status Monitoring
LED Indicators:
- OK (Green): power and module normal
- Com Act (Green): RIO communication activity
- Fault (Red): module or communication fault
- Err A / Err B (Red): channel A/B communication error
Built-in diagnostics: power-on self-test, runtime verification, RAM data verificationFault feedback: supports uploading diagnostic information to the CPU for remote fault location
4. Industrial-Grade Stable Design
- Operating temperature: 0°C ~ +60°C
- Storage temperature: -40°C ~ +85°C
- Humidity: 5% ~ 95% RH (non-condensing)
- Power consumption: 3W, bus current 600mA @ 5V DC
- Physical characteristics: 57mm (W) × 122mm (H) × 52mm (D), weight approx. 0.3kg
- Protective coating: anti-corrosion coating for harsh industrial environments
3. Technical Specifications
Product Identification
- Model: Schneider 140CRA93100
- Brand: Schneider Electric
- Series: Modicon Quantum
- Type: RIO Remote I/O Drop Adapter
- Communication standard: S908 RIO
- Country of origin: France / USA
Core Parameters
- Communication interface: 1 × F-type right-angle coaxial connector
- Transmission rate: 1.544 Mbps
- Isolation voltage: 500V DC (coaxial / ground)
- Maximum I/O modules per drop: 27
- Power supply: 5V DC from Quantum backplane
- Bus current: 600mA
- Power consumption: 3W
Physical and Environmental
- Dimensions: 57mm (W) × 122mm (H) × 52mm (D)
- Weight: approx. 0.3kg
- Mounting: single slot in Quantum remote rack
- Operating temperature: 0 ~ 60°C
- Storage temperature: -40 ~ 85°C
- Humidity: 0 ~ 95% RH (non-condensing)
- Vibration / shock resistance: complies with IEC standards
Compatibility
- Compatible with: full series of Quantum CPUs, RIO master modules (140CRP93100), remote racks
- Programming: RIO network configured via Unity Pro, Concept software
- Protocol: dedicated S908 RIO protocol
- Incompatible with: Premium, M340, Micro series and third-party PLCs
4. Compatible Systems and Supporting Components
Required System Components
- Local side: Quantum CPU rack, RIO master module (140CRP93100)
- Remote side: Quantum remote I/O rack, 140CRA93100 adapter, I/O modules
- Communication medium: 75-ohm coaxial cable, F-type connectors
Common Accessories
- Coaxial cable, terminating resistors, surge protectors
- Dedicated power supply modules for remote racks (140CPS series)
5. Application Scenarios
- Distributed factories: expansion of I/O points for large production lines and cross-workshop systems
- Long-distance monitoring: remote signal acquisition for water treatment, oil pipelines, and storage systems
- Chemical / petrochemical: remote I/O control in hazardous areas to reduce on-site wiring
- Power / metallurgy: distributed data acquisition and control for generator sets and rolling mills
- Mining / cement: remote equipment status monitoring in harsh environments
