SIMATIC S7-200 SMART G2, communications module CM 01, RS485/232 supports Freeport
India, Gujarat, India, 382415
SIMATIC S7-1200, Digital input SB 1221, 4 DI, 24 V DC 200 kHz, Sourcing input General information Product type designation SB 1221, DI 4x24 V DC 200 kHz Input current from backplane bus 5 V DC, typ. 40 mA Power loss Power loss, typ. 1 W Digital inputs Number of digital inputs 4; Current-sourcing ● in groups of 4 Input voltage ● Rated value (DC) 24 V ● for signal “0” (L+ minus 5.0 V DC) ... L+ (1.4 ... 0 mA) ● for signal “1” 0 V ... (L+ minus 10 V DC (10 ... 2.9 mA)) Input current ● for signal “0”, max. (permissible quiescent current) 1.4 mA ● for signal “1”, min. 2.9 mA ● for signal “1”, typ. 7 mA Input delay (for rated value of input voltage) for standard inputs — Parameterizable Yes; 0.1 / 0.2 / 0.4 / 0.8 / 1.6 / 3.2 / 6.4 / 10.0 / 12.8 / 20.0 μs; 0.05 / 0.1 / 0.2 / 0.4 / 0.8 / 1.6 / 3.2 / 6.4 / 10.0 / 12.8 / 20.0 ms for interrupt inputs — parameterizable Yes for technological functions — Parameterizable Yes Cable length ● shielded, max. 50 m; shielded, twisted pair Interrupts/diagnostics/status information Diagnostics indication LED ● for status of the inputs Yes Standards, approvals, certificates CE mark Yes CSA approval Yes UL approval Yes cULus Yes FM approval Yes RCM (formerly C-TICK) Yes KC approval Yes Marine approval Yes