The B833–016 24 Vdc (True Low) input module consists of two groups of eight independent inputs. The B833–016 senses and converts switched input signals into logic voltage levels used by the PLC.
Inputs can be received from push buttons, limit and proximity switches, and other 24 Vdc sources. The module provides 16 inputs that share an external power supply. Input voltages are sensed by comparing the incoming voltage against a fixed threshold.
Following is a simplified schematic of the B833-016 24 Vdc (True Low) input module.
