SIEMENS SIMATIC S7-300, Digital input SM 321, isolated, 16 DI, 24 V DC, 1x 20-pole- NEW Old packaging from long storage – see photos

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Accessory Type Digital Input Expansion Module Range SIMATIC Series SIMATIC S7-300 Series Number of Inputs 16 Input Type Digital For Use With SIMATIC S7-300 Series Supply Voltage 24 V Cable Length 600 m, 1000m Maximum Operating Temperature +60°C Dimensions 125 x 40 x 120 mm

Supply voltage Load voltage L+ ● Rated value (DC) 24 V ● permissible range, lower limit (DC) 20.4 V ● permissible range, upper limit (DC) 28.8 V Input current from backplane bus 5 V DC, max. 10 mA Power loss Power loss, typ. 3.5 W Digital inputs Number of digital inputs 16 Input characteristic curve in accordance with IEC 61131, type 1 Yes Number of simultaneously controllable inputs horizontal installation — up to 40 °C, max. 16 — up to 60 °C, max. 16 vertical installation — up to 40 °C, max. 16 Input voltage ● Type of input voltage DC ● Rated value (DC) 24 V ● for signal “0” -30 to +5 V ● for signal “1” 13 to 30V Input current ● for signal “1”, typ. 7 mA Input delay (for rated value of input voltage) for standard inputs — parameterizable No — at “0” to “1”, min. 1.2 ms — at “0” to “1”, max. 4.8 ms — at “1” to “0”, min. 1.2 ms — at “1” to “0”, max. 4.8 ms Cable length ● shielded, max. 1 000 m ● unshielded, max. 600 m Encoder Connectable encoders ● 2-wire sensor Yes — permissible quiescent current (2-wire sensor), max. 1.5 mA