| SIMATIC S7-1200, DIGITAL I/O SB 1223, 2 DI / 2 DO, 2 DI 24V DC/2 DO 24V DC |
| Supply voltage |
| permissible range, lower limit (DC) | 20.4 V |
| permissible range, upper limit (DC) | 30 V |
| Input current |
| from backplane bus 5 V DC, typ. | 50 mA |
| Output voltage |
| Power supply to the transmitters |
| Supply current, max. | 4 mA; per channel |
| Power losses |
| Power loss, typ. | 1 W |
| Digital inputs |
| Number/binary inputs | 2; Current-sinking |
| In groups of | 1 |
| Input characteristic curve acc. to IEC 1131, Type 1 | Yes |
| Number of simultaneously controllable inputs |
| all mounting positions |
| up to 40 °C, max. | 2 |
| Input voltage |
| Type of input voltage | DC |
| Rated value, DC | 24 V |
| for signal "0" | 0 to 5 V |
| for signal "1" | 15 to 30 V |
| Input current |
| for signal "0", max. (permissible quiescent current) | 1 mA |
| for signal "1", typ. | 0.5 A |
| Input delay (for rated value of input voltage) |
| for standard inputs |
| Parameterizable | Yes; 0.2, 0.4, 0.8, 1.6, 3.2, 6.4, and 12.8 ms, selectable in groups of four |
| at "0" to "1", max. | 2 µs |
| at "1" to "0", max. | 10 µs |
| for interrupt inputs |
| Parameterizable | Yes |
| for counter/technological functions |
| Parameterizable | Yes |
| Cable length |
| Cable length, shielded, max. | 500 m |
| Cable length unshielded, max. | 300 m |
| Digital outputs |
| Number/binary outputs | 2; MOSFET, solid-state (current-sinking/current-sourcing) |
| In groups of | 1 |
| Functionality/short-circuit strength | No |
| Switching capacity of the outputs |
| with resistive load, max. | 0.5 A |
| on lamp load, max. | 5 W |
| Output voltage |
| Rated value (DC) | 24 V |
| for signal "0" (DC), max. | 0.1 V; with 10 kOhm load |
| for signal "1", min. | 20 V |
| Output current |
| for signal "1" rated value | 0.5 A |
| for signal "0" residual current, max. | 10 µA |
| Load resistance range |
| upper limit | 0.6 Ω |
| Cable length |
| Cable length, shielded, max. | 500 m |
| Cable length unshielded, max. | 150 m |
| Interrupts/diagnostics/status information |
| Alarms |
| Alarms | Yes |
| Diagnoses |
| Diagnostic functions | Yes |
| Diagnostics indication LED |
| for status of the inputs | Yes |
| For status of the outputs | Yes |
| Climatic and mechanical conditions for storage and transport |
| Climatic conditions for storage and transport |
| Free fall |
| Drop height, max. (in packaging) | 0.3 m; five times, in dispatch package |
| Temperature |
| Permissible temperature range | -40 °C to +70 °C |
| Air pressure acc. to IEC 60068-2-13 |
| Permissible air pressure | 1080 to 660 hPa |
| Mechanical and climatic conditions during operation |
| Climatic conditions in operation |
| Temperature |
| Permissible temperature range | 0 °C to 55 °C horizontal installation 0 °C to 45 °C vertical installation |
| Degree and class of protection |
| IP20 | Yes |
| Standards, approvals, certificates |
| Marine approval according to Germanischer Lloyd | Yes |
| Mechanics/material |
| Type of housing (front) | |
| Plastic | Yes |
| Dimensions |
| Width | 38 mm |
| Height | 62 mm |
| Depth | 21 mm |
| Weight |
| Weight, approx. | 40 g |
