Products for Totally Integrated Automation and Micro ... - Siemens

SIMATIC S7-1200Digital modules© Siemens AG 2010SB 1221 digital input module■ Overview■ ApplicationThe SB 1221 Signal Board digital input modules enable connectionof the controller to digital process signals.4■ DesignThe Signal Boards are plugged straight into the holder on thefront of the S7-1200-CPU.• Mounting:Signal Boards are plugged direct into the SIMATIC S7-1200-CPU and linked electrically and mechanically with the CPU inthis way.• The installation dimensions of the CPU remain unchanged.• On all Signal Boards, replacement is facilitated by removableterminals ("permanent wiring").• Digital inputs as a supplement to the integral I/O of SIMATICS7-1200 CPUs• Can be plugged directly into the CPU■ Technical specifications6ES7 221-3AD30-0XB0Product type designation SB 12214xDI 5 V DC200 kHzSupply voltagesPower supply to the transmitters6ES7 221-3BD30-0XB0SB 12214xDI 24 V DC200 kHz• Supply current, max. 4 mA; per channel 4 mA; per channelCurrent consumptionfrom backplane bus 5 V DC, 50 mA 50 mAtyp.Power lossPower loss, typ. 1W 1WDigital inputsNumber of digital inputs 4 4• in groups of 1 1Number of simultaneouslycontrollable inputs• all mounting positions- Concurrently controllable 4 4inputs, up to 40 °CInput characteristic curve Yesacc. to IEC 1131, Type 1Input characteristic curveYesacc. to IEC 1131, Type 2Input voltage• Rated value, DC 5V 24 V• for signal "0" 0 to 1 V 0 to 5 V• for signal "1" 2 to 6 V 15 to 30 VInput current• for signal "0", max. 3mA2mA(permissible quiescentcurrent)• for signal "1", min. 6mA 5.8 mA• for signal "1", typ.14 mA■ FunctionThe SB 1221 Signal Board digital input/output modules convertthe level of the external digital signals from the process to theinternal signal level of the S7-1200.6ES7 221-3AD30-0XB0Product type designation SB 12214xDI 5 V DC200 kHzInput delay (for rated valueof input voltage)6ES7 221-3BD30-0XB0SB 12214xDI 24 V DC200 kHz• for standard inputs- parameterizable Yes; 0.2, 0.4, 0.8,1.6, 3.2, 6.4, and12.8 ms, selectablein groups of fourYes; 0.2, 0.4, 0.8,1.6, 3.2, 6.4, and12.8 ms, selectablein groups of four- at "0" to "1", max. 2µs 2.5 µs• for interrupt inputs- parameterizable Yes Yes• for counter/technologicalfunctions- parameterizable Yes YesCable length• Cable length, shielded,max.50 m 50 m; Standardinput: 500 m,high-speedcounters: 50 mNoShort-circuit protectionInterrupts/diagnostics/status informationAlarms•Alarms Yes YesDiagnoses• Diagnostic functions Yes YesInput delay (for rated valueof input voltage)Diagnostics indication LED• for status of inputs Yes Yes4/44 Siemens ST 70 N · 2010