Technical Specifications:

• Number of Channels: 32
• Input Type: Digital (24 V DC)
• Input Voltage (Logic 1): 15 V DC to 30 V DC
• Input Voltage (Logic 0): 0 V to 5 V DC
• Input Current (per channel): < 5 mA (at 24 V DC)
• Isolation: Optical isolation, 500 V DC (channel to channel, channel to bus)
• Filter Time: Configurable: 0.1 ms to 10 ms (per channel or global)
• Response Time: < 1 ms (with minimum filter)
• Supply Voltage (Bus): 24 V DC (from X67 bus)
• Operating Temperature: 0°C to +55°C
• Storage Temperature: -25°C to +70°C
• Dimensions (W x H x D): 72 mm x 90 mm x 115 mm
• Weight: Approx. 0.3 kg

Functional Features:

• 32 optically isolated digital input channels
• Configurable input filter (0.1 ms to 10 ms) per channel via software — eliminates contact bounce
• LED status indicator per channel (green = active, off = inactive)
• Diagnostic functions: Wire break detection, short-circuit detection per channel
• Software-configurable via B&R Automation Studio
• Sink/Source input configurable per channel group
• Fast response time (< 1 ms) for high-speed counting applications

Performance Parameters:

• Input Threshold (Logic 1): ≥ 15 V DC
• Input Threshold (Logic 0): ≤ 5 V DC
• Hysteresis: > 2 V (prevents chatter at threshold)
• Optical Isolation Voltage: 500 V DC (test voltage, 1 minute)
• Maximum Switching Frequency: 1 kHz (with minimum filter)
• Power Consumption (Bus): < 3 W
• MTBF: > 100,000 hours (at 25°C)

Material Composition:

• Housing: Flame-retardant PA66 (polyamide 6.6) with glass fiber reinforcement
• Terminals: Tin-plated copper alloy with spring-cage connection
• PCB: FR-4 glass fiber epoxy laminate, conformally coated
• Optocouplers: High-speed optocouplers with CTR > 100%
• Connectors: Gold-plated pins for X67 bus connection

Structural Features:

• DIN rail mountable (TS 35, EN 60715)
• Front-facing X67 bus connector
• Spring-cage terminal connections (32 terminals, tool-free wiring)
• 32 LED indicators on front panel (one per channel)
• Module width: 72 mm (X67 standard)

Working Principle:
Each of the 32 input channels contains an optocoupler (optical isolator) that separates the field-side 24 V DC signal from the bus-side logic. When a field device applies ≥15 V DC to the input, the optocoupler’s internal LED illuminates, activating the phototransistor on the bus side, which the controller reads as a logic 1. When the field voltage drops to ≤5 V DC, the optocoupler turns off, registering a logic 0. The configurable digital filter (0.1–10 ms) debounces mechanical switch inputs and filters electrical noise. All 32 channels are scanned cyclically via the X67 bus and transmitted to the controller in a single data frame.

Advantages & Highlights:

• 32 channels in one module — maximum density for digital inputs
• Optical isolation on every channel — complete protection against ground loops and transients
• Configurable filtering — eliminates contact bounce without external hardware
• LED per channel — instant visual diagnostics
• Spring-cage terminals — fast, tool-free wiring
• Fast 1 ms response — suitable for high-speed counting

Applicable Industries:

• High-channel-count discrete I/O applications
• Assembly lines with many sensors
• Packaging machines
• Conveyor systems
• Printing presses
• Material handling equipment

Installation Requirements:

• Mount on DIN rail TS 35 (EN 60715)
• Connect to X67 bus via front-facing connector
• Use 24 V DC for all field devices (PNP or NPN compatible)
• Wire ferrules mandatory for stranded conductors
• Set filter time in software according to application (0.1 ms for proximity sensors, 5–10 ms for mechanical switches)
• Torque terminal screws to 0.8 Nm

Usage Precautions:

• Do not exceed 30 V DC on any input channel
• Do not apply AC voltage to digital inputs (will damage optocouplers)
• Use correct polarity — this is a sink-type input (connect field device +24 V to input, 0 V to field device common)
• Verify filter settings in software before commissioning
• Do not leave inputs floating — always connect to a defined voltage level
• Do not operate above +55°C ambient temperature