Key Technical Parameters Parameter Specification Type UR20-16DI-P Version Remote I/O module, IP20, Digital signals, Input, 16-channel Inputs 16 digital inputs (Type 1 and 3, per EN 61131-2) Sensor Connection Single-conductor (1-wire) Sensor Supply No (external sensor supply required) Electrical Specifications Parameter Specification Supply Voltage (Inputs) 24 V DC (+20% / -15%) via the system bus High Input Voltage > 11 V Low Input Voltage < 5 V Input Filter 3 ms (fixed, not adjustable per channel) Input Frequency Max. 1 kHz Current Consumption (Isys) 8 mA (typical) Current Consumption (IIN) < 25 mA Module Diagnosis Yes (1 Bit diagnostic data) Individual Channel Diagnosis No Reverse Polarity Protection Yes Galvanic Isolation 500 V DC (channel to field/system bus) Mechanical Specifications Parameter Specification Dimensions (W x H x D) 11.5 mm x 120 mm x 76 mm Net Weight 44 g Mounting TS 35 rail Connection Technology PUSH IN Wire Cross-section (solid/fine-stranded) 0.14...1.5 mm² (AWG 26...16) Protection Class IP20 Environmental & Compliance Parameter Specification Operating Temperature -20°C to +60°C Storage Temperature -40°C to +85°C Air Humidity 10% to 95%, non-condensing Shock Resistance 15 g over 11 ms, half sinus wave (IEC 60068-2-27) Vibration Resistance 3.5 mm amplitude (5-8.4 Hz) / 1 g acceleration (8.4-150 Hz) Pollution Severity 2 Overvoltage Category II Flammability Rating UL 94 V-0 Certifications cULus (E141197), DNV/GL, ABS, Lloyds Register, CCC, CE, UKCA, ATEX, IECEx RoHS Status Compliant with exemption (Lead 7439-92-1) System & Communication Parameter Specification Process Data 2 Bytes System Bus Speed Max. 48 Mbit/s Fieldbus Protocols PROFINET IRT/RT, EtherCAT, Modbus/TCP, EtherNet/IP, CANopen, CC-Link, and many more