Supply voltage Load voltage L1 rating (AC) 230 V permissible range, lower limit (AC) 93 V permissible range, upper limit (AC) 264 V Input current from load voltage L1 (no load), max 2 mA from backplane bus DC 5 V, 100 mA max power loss Power loss, typical 8.6 W Digital output Digital output number 8 off the output of the lighting load capacity, maximum 50 W Output voltage for signal "1" minimum L1 (-1.5 V ) output current for signal "1" rated 2 A for signal "1" permissible range of 0 to 40 ℃, max 2 A for signal "1" minimum load current 10 mA for signal "1" permissible surge current, max 20 A; maximum of a maximum of 0.5 Hz lighting biggest one AC cycle for signal "0" residual current, max 2 mA max switching frequency of 10 Hz resistive load inductive load when the load is Hz output of the total current (per group) horizontal installation up to 40 ℃, 4 A maximum of up to 60 ℃, max 2 A vertical installation up to 40 ℃, the maximum length of 2 A conductor shielded cable length , max 1000 m unshielded wire length, maximum 600 m alarms / diagnostics / status information Alarms Diagnostic alarm diagnose whether diagnostic information is broken No Short No load voltage fuse is missing is a diagnostic display LED Rated load voltage PWR (green) insurance OK FSG (green) is electrically isolated digital outputs Galvanic isolation between channels, grouping four points between the channels and the backplane bus is; opto-coupler insulation insulation test, using AC 1500 V front plug connection technology needs 20-pin Dimensions Width 40 mm Height 125 mm Depth 120 mm Weight Weight about 275 g Date 2014-2-1 SIMATIC S7-300, DIGITAL OUTPUT SM 322, optical isolation, 8 DO, 120/230V AC, 1A, 20-pin