Title: +038=360.000-OU045T_04-PCD2.m4160 PLS SBC - IO Manual.pdf
C D V 4 2s t u p nI6 122 236-15PCD3.E16xInput circuits and terminal designationDepending on external wiring, this module may be used for source or sink operation.Source operation (positive logic):10k10k10k10k17 19 21 23 16 L10E1 E0Screwless terminalsUe 24 VDCSwitch closed (+ at input): signal state "H", LED lights up Switch open: signal state "L", LED offSink operation (negative logic):17 2119 2316L10E1 E0Screwless terminalsUe 24 VDCSwitch closed (- at input): signal state "L", LED off Switch open: signal state "H", LED lights up18 20 22internal connected, may be used as "distributor", together max. 500 mA !Watchdog: This module can interact with the watchdog, if it is used on base address 240. In this case, the last input with address 255 cannot be used. For details, please refer to the "Watchdog" section, which describes the correct use of the watchdog in conjunction with PCD3 components.6-16