SIMATIC S7-1200, Analog input, SM 1231, 4 AI

Specifications: Electrical Characteristics: Supply Voltage: 24 V DC. Backplane Bus Current: 80 mA (typical). Power Loss: 1.8 W (typical). Input Protection Limits: Voltage: ±35 V. Current: up to 40 mA. Analog Inputs: Channels: 4 differentials. Voltage Ranges: ±10 V, ±5 V, ±2.5 V, ±1.25 V. Current Ranges: 0–20 mA, 4–20 mA. Input Resistance: Voltage: ≥1 MΩ. Current: Not explicitly listed, but standard for SM 1231 modules. Resolution: 15-bit + sign (16-bit total). Cycle Time (all channels): Max 100 µs. Smoothing: Configurable (None, Low, Medium, High). Accuracy & Diagnostics: Basic Error (25 °C): ±0.1%. Extended Error (up to 55 °C): ±0.3%. Diagnostics: Wire break detection. Supply voltage monitoring. Diagnostic alarms. LEDs for input status and maintenance. Mechanical & Environmental: Dimensions (W x H x D): 45 x 100 x 75 mm. Mounting: DIN rail. Protection Rating: IP20. Operating Temp: –20 to +60 °C. Storage Temp: –40 to +70 °C. Humidity: Up to 95% (non-condensing). Shock/Vibration: IEC 60068 compliant. Compliance & Approvals: CE, UL, CSA, FM, RCM, KC. Marine: DNV, LRS, BV, RMRS, ABS. ATEX, IECEx. Environmental Product Declaration (EPD). Global Warming Potential: 43.1 kg CO₂ eq.