The Schneider ASB853016 input module captures field signals from sensors and switches for Modicon M340 controllers. This high-density unit delivers 16 digital input channels for comprehensive system monitoring. Its compact housing measures 105 mm in height, 30 mm in width, and 92 mm in depth.
Technical Specifications
| Parameter | Specification |
|---|---|
| Brand | Schneider Electric |
| Model | ASB853016 |
| Category | Digital Input Module |
| Number of Inputs | 16 channels |
| Input Voltage | 24 V DC (nominal) |
| Input Voltage Range | 20.4 – 28.8 V DC |
| Input Current | 6 mA per channel |
| Input Type | Sinking |
| Response Time (ON to OFF) | 1.0 ms |
| Response Time (OFF to ON) | 0.5 ms |
| Isolation Voltage | 1500 V AC (channel-to-bus) |
| Power Consumption (5 V) | 1.6 W |
| Power Consumption (24 V) | 2.2 W (all inputs ON) |
| Backplane Current Draw | 320 mA (at 5 V) |
| Dimensions (H×W×D) | 105 × 30 × 92 mm |
| Weight | 0.16 kg |
| Operating Temperature | 0°C to +60°C |
| Storage Temperature | –25°C to +85°C |
| Protection Rating | IP20 |
| Mounting Type | DIN rail (35 mm) |
| Terminal Type | 20-pin removable screw |
| Wire Gauge | 0.2 – 1.5 mm² |
| Input Signal Indicator | 16 LEDs |
| Component Count | 42 components |
Input Configuration and Signal Detection
The Schneider ASB853016 monitors 16 channels of 24 V DC signals from field devices. Each input draws 6 mA for reliable state detection in noisy environments. The module uses sinking (negative logic) inputs for standard sensor compatibility. Such configuration suits NPN sensors, pushbuttons, and relay contacts effectively.
Response Speed and Signal Processing
This input module achieves rapid response with 0.5 ms OFF-to-ON transitions. The ON-to-OFF transition completes in 1.0 ms for precise timing applications. The inputs filter electrical noise to prevent false triggering from industrial interference. Each channel includes a status LED that illuminates when the input remains active.
Isolation and Noise Immunity
The Schneider ASB853016 provides 1500 V AC isolation between inputs and the backplane circuitry. This barrier protects the M340 CPU from ground loops and voltage spikes. Optocouplers on each channel ensure galvanic separation of field signals. Such design guarantees reliable operation in electrically noisy factory environments.
Power Architecture and Energy Efficiency
The module draws 1.6 W from the 5 V backplane supply for logic and isolation circuits. A separate 24 V field supply provides 2.2 W with all 16 inputs energized. This split design prevents field-side disturbances from affecting backplane power. The backplane current draw reaches 320 mA during full operation.
Component Layout and Hardware Quality
This PCB contains 42 components, including optocouplers, resistors, and input conditioning circuits. The board uses surface-mount technology for compact module dimensions. A protective conformal coating shields the circuitry from dust and humidity. The housing meets UL 94 V-0 flame-retardant standards for fire safety.
Visual Diagnostics and Status Monitoring
Sixteen front-panel LEDs display the status of each individual input channel. These indicators help technicians trace signal paths without diagnostic tools. A power LED confirms the presence of both backplane and field supply voltages. Fault detection circuitry alerts the CPU to potential wiring issues.
Installation and System Mounting
Mount the Schneider ASB853016 on a standard 35 mm DIN rail using the integrated clip. Its 30 mm width enables high-density installations in space-limited cabinets. Connect field wiring through the 20-pin removable screw terminal for reliable termination. The terminal accepts wire gauges from 0.2 to 1.5 mm² for standard cabling.
Details
| Weight | 0.25 kg |
|---|---|
| Dimensions | 130 × 100 × 20 mm |
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