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Modbus RTU Master
Input Impedance: 6800 Ohm
Resolution: 16-bit with 14-bit monotonicity
Maximum DC Power: 300 mA
System Length Option: 50 = 5
Siemens 6ES7421-1BL01-0AA0 Isolated Digital Input 32 DI 3500/94 I/O module Modbus RTU MasterOverview 6ES7421 1BL01 0AA0 is a SIMATIC S7 400 digital input module, SM 421, with 32 isolated digital inputs (24 V DC). Specifications Input current (from backplane bus): Max. 20 mA Power loss: Typ. 6 W Digital Inputs Number of digital inputs: 32 Input characteristic: According to IEC 61131 Type 1 Simultaneously controllable inputs: 32 Input voltage: Rated value: 24 V DC Signal "0": 30 V DC to +5 V DC Signal "1": 13 V DC to 30 V DC Input current: For
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