3504A | Triconex Digital Input Module

Digital Input Modules receive discrete signals of these nominal voltages: 115 VAC/VDC, 48 VAC/VDC, and 24 VAC/VDC. All voltages are available in TMR modules. Non-TMR modules are available in 24 VDC and 48 VDC only. Speed input and totalization modules are also available.Each 64-point Digital Input (DI) module has three isolated channels which independently process all data input to the module. A microprocessor on each channel scans each input point, compiles data and transmits it to theMain Processors on demand. Then input data is voted at the Main Processors just prior to processing to ensure the highest integrity.Type Single, DIType TMR, DI Voltage 24 or 48 VDCPoints 64, commoned, DC coupledDC Range 20-72 VDMaximum Voltage 72 VDCNominal Turn-On negligibleTypical Hysteresis 4 VDC/7 VDCMinimum Point Isolation n/aNominal Input Impedance > 30 KNominal Input Impedance > 3.0 K