24 Volt DC Input, Relay Output, 8 Inputs/8 Outputs IC693MDR390 The 24 volt DC Input/Relay Output module for the Series 90-30 Programmable Logic Controller provides 8 input points with one common power input terminal, and 8 normally-open relay circuits in the same module. The input circuits are designed to have either positive or negative characteristics in that they sink or source current to/from the input devices to/from the user common and are arranged as one group of 8 inputs. The relay output circuits are arranged in two groups of four circuits each. Each group has a common power output terminal. Input characteristics are compatible with a wide range of user-supplied devices, such as: pushbuttons, limit switches, and electronic proximity switches. Current through an input results in a logic 1 in the input status table (%I).
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