The Allen-Bradley 1756-IA16 is a Sixteen (16) channel AC input module from the ControlLogix Programmable Automation Controller (PAC) platform. This module is used to interface discrete signaling devices such as switches, auxiliary contacts and similarly operating devices that are rated for 120VAC, nominal and voltage range of 74-132VAC with frequency of 47-63 Hz.
The 1756-IA32 has Two (2) input groups with each input group having Eight (8) channels each. It is provided with individual channel status LED that activates to provide feedback regarding the state of each of the channel. Each of the input channel has a hardware delay time of 10 ms max + filter time for OFF to ON signal transition and 8 ms max + filter time for ON to OFF signal transitions. User selectable filter time for OFF to ON transition are 1 ms or 2 ms and 9 ms or 18 ms for ON to OFF transition. This module has a cyclic update time 200 µs-750 ms.
