CC-PDIL01
Product Description
The CC-PDIL01 is a high-reliability digital input module designed for industrial automation systems, specifically engineered to collect and process discrete digital signals from field devices such as limit switches, pushbuttons, and proximity sensors. It is widely used in industries including chemical processing, power generation, and manufacturing, serving as a critical interface between field equipment and control systems like DCS or PLC.
In a chemical plant’s reactor safety system, this module continuously monitors the status of emergency stop buttons, pressure relief valve switches, and door interlocks (all providing dry contact signals). It converts these mechanical switch states into digital data (0/1) and transmits them to the DCS within 1ms of state changes. This rapid response ensures that the safety system can trigger a shutdown within 50ms if any critical interlock is violated, preventing potential accidents.
In a power plant’s turbine control system, it handles high-speed digital inputs from speed sensors and overspeed trip switches. The module’s debounce circuitry filters out false signals caused by vibration or electrical noise, ensuring that only valid state changes are reported. For example, it can distinguish between a genuine overspeed trip signal and transient noise, reducing false shutdowns by over 90% compared to basic input modules.
Equipped with channel-to-channel isolation (2500V AC), it prevents ground loops and cross-talk between different input circuits. In a manufacturing facility with multiple production lines, this isolation ensures that electrical disturbances from one line (such as motor startup transients) do not affect signal integrity on other lines, maintaining overall system stability.
The module supports hot-swapping, allowing for replacement during system operation without interrupting the control process. This is particularly valuable in continuous production environments, such as a paper mill’s machine control system, where unplanned downtime can result in significant material waste and production losses. Its compact design also enables high-density installation, with up to 16 modules mountable in a standard 19-inch rack, saving valuable cabinet space.
Product Parameters
- Basic Parameters
- Operating Voltage: 24V DC ±10%
- Power Consumption: Typical 3W, Maximum 5W
- Operating Temperature Range: -40°C to +70°C
- Storage Temperature Range: -50°C to +85°C
- Relative Humidity: 5% – 95% (non-condensing)
- MTBF (Mean Time Between Failures): ≥ 200,000 hours
- Input Parameters
- Number of Channels: 16 isolated digital input channels
- Input Signal Type: Dry contact (NO/NC) or DC voltage signals (12-24V DC)
- Input Voltage Range: 12-30V DC for voltage inputs
- Response Time: ≤1ms (for signal transitions from 0 to 1 or 1 to 0)
- Debounce Time: Configurable (0.1ms to 100ms) via software
- Isolation: 2500V AC channel-to-channel and channel-to-backplane
- Communication Parameters
- Interface: Compatible with distributed control system (DCS) backplanes
- Data Transfer Rate: Up to 10Mbps (via backplane communication)
- Diagnostic Data: Transmits channel status, open circuit, and overvoltage fault information
- Environmental Resistance
- Vibration Resistance: Complies with IEC 60068-2-6, 10Hz-2000Hz, 1g acceleration
- Shock Resistance: Complies with IEC 60068-2-27, 25g acceleration for 11ms
- EMC Compliance: Meets EN 61326-1 (industrial immunity standards)
Product Specifications
- Physical Specifications
- Dimensions: 100mm × 160mm × 35mm (length × width × height)
- Weight: Approximately 300g
- Housing Material: Aluminum alloy with anti-corrosion coating
- Installation Method: 35mm DIN rail mounting or system rack mounting
- Connector Type: Spring-loaded terminal blocks (for field wiring)
- Functional Specifications
- Channel Monitoring: Individual status LEDs for each input channel (green for ON, off for OFF)
- Fault Detection: Built-in diagnostics for open circuits, overvoltage, and backplane communication errors
- Hot-Swap Capability: Supports insertion/removal during system operation without power interruption
