xiB & xiB-64 - Technical Manual Version 1.06 463.9.4. Optically isolated Digital Input3.9.4.1. Optically isolated Digital Input - General infoItem Parameter / noteMaximal input voltage 24VCommon pole NoEffect of incorrect input terminal connection Reverse voltage polarity protectedEffects when withdrawing/inserting inputmodule under powerNo damage, no lost dataMaximum recommended cable length 5mInput level for logical 0 Voltage < 2.0V/Current 0mA to 0.3mAInput level for logical 1 Voltage > 4.0V/Current 4mA to 6mAInput debounce filter NoInput delay – rising edge 1.7 +/-0.2μs (VINPUT=10V, TAMBIENT=25°C)Input delay – falling edge1 10.7 +/-0.2μs (VINPUT=10V, TAMBIENT=25°C)Number of inputs 1External trigger mapping YesInput functions Trigger, get current level (rising or falling edge are supported)table 3-28, Optically isolated digital input, general infoNote: – 1) Propagation delay depends on voltage level, propagation jitter is significantly lower.3.9.4.2. Digital Input – signal levelsInput levels are not IEC 61131-2, Type 1 as the ON state has been extended to support 5V TTLV-in-min [V] V-in-max [V] State I-max [mA]-24.0 2.0 Off (0) 0.0 – 0.3 mA (0mA nominal)2.0 4.0 Transient 44.0 24.0 On (1) 4 – 6 mA (5mA nominal)table 3-29, digital info, signal levelsNote:• Input level Vin represents amplitude of the input signal.• Voltage levels referenced to common ground GND
