Omron CJ1W‑ID212 is a 16‑point high‑speed DC input unit for SYSMAC CJ‑series PLC systems. Accepts 24 V DC signals from field devices with configurable polarity (PNP/NPN) without hardware changes. Removable screw terminal block, DIN rail mounting. Applications: High‑speed digital signal acquisition for machine automation and positioning Conveyor and material handling system input expansion Packaging machinery and assembly line monitoring General factory automation requiring fast input response Technical Specifications: Core Specifications Number of inputs: 16 (16 points/common, 1 circuit) Rated input voltage: 24 V DC Permissible input voltage range: 20.4 V … 26.4 V DC Input impedance: 3.3 kΩ Typical input current: 7 mA (at 24 V DC) ON voltage/current: ≥ 14.4 V DC / ≥ 3 mA OFF voltage/current: ≤ 5 V DC / ≤ 1 mA Performance Specifications ON response time (standard): ≤ 8.0 ms (configurable 0 … 32 ms in Unit Information settings) OFF response time (standard): ≤ 8.0 ms (configurable 0 … 32 ms) Minimal ON/OFF response time: 15 μs ON / 90 μs OFF (internal element delay, when set to 0 ms) Digital filter: configurable 0 … 32 ms Simultaneously ON points: 100% at 24 V DC (16 points at 45 °C, 12 points at 55 °C) Word allocation: 1 word Electrical & Environmental Specifications Internal current consumption (5 V DC): 130 mA max. Insulation resistance: 20 MΩ min. between external terminals and GR terminal (100 V DC) Dielectric strength: 1,000 V AC between external terminals and GR terminal for 1 min (leakage current ≤ 10 mA) Protection rating: IP20 Dimensions (W × H × D): 31 mm × 90 mm × 89 mm Weight: 110 g max. Operating temperature: 0 °C … 55 °C Storage temperature: –20 °C … +75 °C Certifications: N, L, CE System Integration: This input unit belongs to the Omron SYSMAC CJ series. Compatible with CJ1, CJ2, CS1, NJ series CPU units and CP1H systems. Installs on CPU Rack or Expansion Rack via CJ I/O Bus. Input power polarity can be connected in either direction. To achieve minimal ON/OFF response times (15 μs / 90 μs), set the response time to 0 ms in Unit Information settings – internal element delays provide the true high‑speed response. Related Products: CJ1W‑ID211 – 16‑point DC input unit (standard speed, similar 24 V DC specs) CJ1W‑ID212 – 16‑point DC input unit (high‑speed version, 15 μs ON / 90 μs OFF) CJ1W‑ID231 – 32‑point DC input unit (Fujitsu connector) CJ1W‑ID232 – 32‑point DC input unit (MIL connector) CJ1W‑ID261 – 64‑point DC input unit (Fujitsu connector)
