Siemens SIPLUS S7-1200 SM 1221 16-Channel Rugged Input Module Specification
- Speed Range
- Response time delay at signal change: 0.2 ms to 12.8 ms
- Control Type
- Digital input logic expansion parameter
- Application
- Safe Industrial Logic Control under medial stress / vibrations
- Warranty
- Manufacturer standard
- Weight
- 0.210 Kilograms (kg)
- Cable Length
- 500 Meter (m)
- Mounting Type
- DIN Rail Mount / Panel Mount layout compatibility
- Processor Type
- Add-on PLC expansion accessory / Internal microprocessor link
- Connectivity Type
- Screw / Spring-clamp terminal connections
- Automation Grade
- Industrial PLC Module Extension (SIPLUS S7-1200 Series)
- Sensor Type
- Actuators / Industrial standard 24V digital sensors & switches
- Phase
- Single-Phase (Supply configuration parameter marker)
- Features
- 16 Digital Inputs / 24V DC / Sink-Source / Conformal Coating
- Drive Type
- PLC Functional Signal Module Extension (Not a motor drive)
- Usage
- Supplement to the integral onboard I/O of SIPLUS S7-1200 CPUs
- Material
- Conformal coating (SIPLUS Extreme medial stress robust housing)
- Size
- 45 mm x 100 mm x 75 mm (W x H x D module footprint)
- Height
- 100 Millimeter (mm)
- Temperature
- -20 C to +60 C Celsius (oC)
- Product Type
- Digital Input SM 1221 Expansion Signal Module
- Length
- 75 Millimeter (mm)
Siemens SIPLUS S7-1200 SM 1221 16-Channel Rugged Input Module Trade Information
- Minimum Order Quantity
- 1 Piece
Siemens SIPLUS S7-1200 SM 1221 16-Channel Rugged Input Module About
The Siemens SIPLUS S7-1200 SM 1221 (6AG1221-1BH32-4XB0) is a ruggedized 16-channel digital input module engineered for harsh industrial automation environments. Based directly on the standard 6ES7221-1BH32-0XB0 architecture, this premium SIPLUS variant features a protective conformal coating. This specialized chemical layer shields the internal electronics against dust, moisture, severe condensation, frost, and corrosive atmospheric gases.The expansion module adds 16 digital inputs running at 24 V DC to a SIMATIC S7-1200 PLC system without taking up excessive control cabinet space. The dense array of inputs can be flexibly parameterized to support sink or source (PNP/NPN) circuit wiring topologies. It reliably functions across an operating temperature range of -20C to +60C. Complete with galvanic isolation and front-facing LED diagnostics, it delivers stable binary signal processing for complex field applications.