- Drive technology
- Automation technology
- Automation systems
- SIMATIC Industrial Automation Systems
- Controllers
- LOGO! logic module
- Basic Controllers
- Advanced Controllers
- S7-1500
- S7-300
- S7-400/S7-400H/S7-400F/FH
- Demonstration models
- Central processing units
- Signal modules
- Digital modules
- SM 421 digital input module
- SM 422 digital output module
- SIPLUS S7-400 digital modules
- Analog modules
- Function modules
- Communication
- Connection system
- Racks
- SIPLUS S7-400 racks
- Interface modules
- PS 405/407 power supply
- SIPLUS S7-400 power supplies
- Accessories
- S7-400H
- S7-400F/FH
- Distributed Controllers
- Software Controllers
- Drive Controllers
- Supplementary components
- I/O systems
- SIMATIC control systems
- Software for SIMATIC Controllers
- Programming devices
- Siemens Partner Program
- SIMOTION Motion Control System
- SINUMERIK CNC automation systems
- System cabling/control cabinets
- SIMATIC HMI operator control and monitoring systems
- Identification and locating
- Industrial communication
- Modular Automation
- Industrial controls
- Industrial Edge
- Industry software
- Industrial Computing
- Process control systems
- Process instrumentation
- Process analytics
- SITOP power supplies
- Products for specific requirements
- Energy
- Building Technologies
- Low-Voltage controls and distribution
- Market-specific solutions
- Services
- Software
- ... and everything else you need
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SM 421 digital input module
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Produkt No. / Produktbeskrivning
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grips for HMI PRO devices, universally adjustable from 12" to 22", color: RAL9006 (silver), scope of supply: 1 grip (left), 1 grip (right), 1 mounting rail including mounting hardware
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grips for HMI PRO devices, universally adjustable from 24", color: RAL9006 (silver), scope of supply: 1 grip (left), 1 grip (right), 1 mounting rail including mounting hardware
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USB interface for PRO devices, including cable and plug USB 2.0 type A, IP65 with closed protective cap, mounting on the side of the basic adapter, scope of supply: 1 USB socket with cable and plug mounted in the cover, 1 protective cap, including screws
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keyboard tray for PRO devices, inclination adjustable, IP65, color: RAL9006 (silver), scope of supply: 1 keyboard tray
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storage plate for mounting on the keyboard tray for standard keyboard and mouse, color: RAL9006 (silver), scope of supply: 1 keyboard tray sheet
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