SIMATIC S7-1200, Digital output SM 1222, 16 DO, relay 2 A General information Product type designation SM 1222, DQ 16x relay/2 A Supply voltage 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. 135 mA Digital outputs ● from load voltage L+, max. 11 mA/relay coil Power loss Power loss, typ. 8.5 W Digital outputs Number of digital outputs 16 ● in groups of 1 Short-circuit protection No; to be provided externally Switching capacity of the outputs ● with resistive load, max. 2 A ● on lamp load, max. 30 W with DC, 200 W with AC Output voltage ● Rated value (DC) 5 V DC to 30 V DC ● Rated value (AC) 5 V AC to 250 V AC Output current ● for signal “1” rated value 2 A Output delay with resistive load ● “0” to “1”, max. 10 ms ● “1” to “0”, max. 10 ms Total current of the outputs (per group) horizontal installation — up to 50 °C, max. 10 A; Current per mass Relay outputs ● Number of relay outputs 16 ● Rated supply voltage of relay coil L+ (DC) 24 V ● Number of operating cycles, max. mechanically 10 million, at rated load voltage 100 000 Switching capacity of contacts — with inductive load, max. 2 A — on lamp load, max. 30 W with DC, 200 W with AC — with resistive load, max. 2 A Cable length ● shielded, max. 500 m ● unshielded, max. 150 m Interrupts/diagnostics/status information Alarms ● Diagnostic alarm Yes Diagnostics indication LED ● for status of the outputs Yes Potential separation Potential separation digital outputs ● between the channels Relays ● between the channels, in groups of 4 ● between the channels and backplane bus 1 500 V AC for 1 minute Permissible potential difference between different circuits 750 V AC for 1 minute Degree and class of protection IP degree of protection IP20 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 Ecological footprint ● environmental product declaration Yes Global warming potential — global warming potential, (total) [CO2 eq] 68.6 kg — global warming potential, (during production) [CO2 eq] 8.16 kg — global warming potential, (during operation) [CO2 eq] 60.7 kg — global warming potential, (after end of life cycle) [CO2 eq] -0.334 kg Ambient conditions Free fall ● Fall height, max. 0.3 m; five times, in product package Ambient temperature during operation ● min. -20 °C ● max. 60 °C; Number of simultaneously activated outputs: 8 (no adjacent points) at 60 °C horizontal or 50 °C vertical, 16 at 55 °C horizontal or 45 °C vertical ● horizontal installation, min. -20 °C ● horizontal installation, max. 60 °C ● vertical installation, min. -20 °C ● vertical installation, max. 50 °C ● permissible temperature change 5°C to 55°C, 3°C / minute Ambient temperature during storage/transportation ● min. -40 °C ● max. 70 °C Air pressure acc. to IEC 60068-2-13 ● Storage/transport, min. 660 hPa ● Storage/transport, max. 1 080 hPa Relative humidity ● Operation at 25 ℃ without condensation, max. 95 % Connection method required front connector Yes Mechanics/material Enclosure material (front) ● Plastic Yes Dimensions Width 45 mm Height 100 mm Depth 75 mm Weights Weight, approx. 260 g Approvals / Certificates
