Siemens 6ES7131-4BB00-0AA0 Siemens

Product Overview The Siemens 6ES7131-4BB00-0AA0 is a digital input module for the SIMATIC ET 200S platform. It provides eight standard DC inputs and integrates into distributed I/O configurations via the backplane bus. The module supports isochronous operation (TWE = 3000 µs) and connects two-wire sensors, making it suitable for monitoring switch signals or proximity sensors in automation systems. Typical industrial applications include machine control, process monitoring, and modular I/O expansions within SIMATIC ET 200S installations. Best Suited For SIMATIC ET 200S distributed I/O systems Standard DC input monitoring (8 channels) Isochronous mode applications (TWE = 3000 µs) Integration with two-wire sensor signals Compact on-machine or panel installations Digital inputs 8 Input voltage 24 V DC Isochronous mode Yes (TWE = 3000 µs) Power loss 1.2 W (typ.) Width 15 mm Technical Specifications I/O & Electrical Digital inputs 8 Input voltage (rated) 24 V DC Signal "0" threshold -30 to +5 V Signal "1" threshold +15 to +30 V Input current (signal "1"), typical 5 mA Supports 2-wire sensors Yes; max quiescent current 1.5 mA Isochronous mode Yes; TWE = 3000 µs Communication & Power Supply voltage source From power module, 24 V DC Reverse polarity protection Yes Backplane bus current, max 10 mA Power loss, typical 1.2 W Physical & Environmental Width 15 mm Height 81 mm Depth 52 mm Weight, approx. 35 g Isolation tested with 500 V DC Cable length, shielded max 1000 m Cable length, unshielded max 600 m Certifications EU Conformity UK Conformity China RoHS UL RCM EAC ATEX FM IECEx ABS BV DNV LR PRS RINA General Product Approval, EU and UK Declarations of Conformity, China RoHS; Hazardous-location standards: ATEX, FM, IECEx; Maritime: ABS, BV, DNV, LR, PRS, RINA, RCM, EAC, UL