36Table 6-2 Polarity setting methods for digital input signals① ② ③ ④Input/output portselection0: Output port1: Input portChannelselectionInput: 1-7Output:1-5Reserved 0: The input port is valid when no current passes theport, and the output port is valid when the switch tubeis open..1: The input port is valid when the current passes theport, and the output port is valid when the switch tubeis closed.Other: Check the current statusExample 6-1: Polarity Setting for Digital Input Signal DIN1Fig. 6-1 Polarity setting for digital input signal DIN1Table 6-3 Polarity setting for digital input signal DIN1① ② ③ ④Input/output port selectionSet to 1 (input portselected)Channel selectionSet to 1 (DIN 1 selected)Reserved 0: D1N1 is enabled when S1opens1: D1N1 is enabled when S1closesNamely, if d3.08 is set to ―110.0‖, it indicates that DIN1 is enabled when no current passes the input port; ifd3.08 is set to ―110.1‖, it indicates that DIN1 is enabled when any current passes the input port.6.1.2 Simulation of Digital Input SignalsTable 6-4 IO simulation variableNumericDisplayVariable Name Meaning DefaultValueRanged3.09 Dio_Simulate Simulates input signals, and enforces outputsignals for outputting0 N/A
