Allen - Bradley 1756 - IB16/A is a ControlLogix discrete input module. The main parameters are as follows:
Module Type: Digital DC Input Module
Number of Inputs: 16
Input Voltage: 12 - 24V DC sink
Operating Voltage Range: 10 - 31.2V DC
Maximum Operating Current: 10 mA at 31.2V DC
Input Delay Time: 2 ms plus selected filter time
Off - to - On Hardware Delay: 290 µs nom / 1 ms max + filter time
On - to - Off Hardware Delay: 700 µs nom / 2 ms max + filter time
Power Dissipation (Max): 5.1 W @ 60 °C
Backplane Current at 24 Volts: 2 mA
Backplane Current at 5.1 Volts: 120 mA
Thermal Dissipation: 21.1 Btu / hr @ 60 °C
Isolation Voltage: 250V (continuous), basic insulation type, inputs - to - backplane, and input group - to - group. No isolation between individual group inputs.