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The LOGO DM16/24R SIEMENS (Part Number: 6ED1055-1NB10-0BA2) is a high-density digital expansion module designed to scale I/O capacity for Siemens LOGO! 8 micro-automation logic controllers. Powered by a 24V DC supply, the LOGO! DM16/24R SIEMENS adds 8 digital inputs (24V DC) and 8 relay outputs (rated for up to 5A switching current) to a single controller setup, doubling standard input/output density in compact industrial control panels.
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LOGO DM16/24R SIEMENS Digital Expansion Module
The LOGO DM16/24R SIEMENS (Part Number: 6ED1055-1NB10-0BA2) is a high-density digital expansion module designed to scale I/O capacity for Siemens LOGO! 8 micro-automation logic controllers. Powered by a 24V DC supply, the LOGO! DM16/24R SIEMENS adds 8 digital inputs (24V DC) and 8 relay outputs (rated for up to 5A switching current) to a single controller setup, doubling standard input/output density in compact industrial control panels.
Occupying 4 modular widths ($72\text{ mm}$ DIN-rail space), the LOGO! DM16/24R SIEMENS connects directly to the system expansion bus of LOGO! 8 base units without external bus wiring. With potential-free relay contact outputs capable of driving solenoid valves, contactors, lighting banks, and auxiliary motors, it provides seamless signal isolation between 24V DC control logic and higher-voltage load circuits up to $240\text{V AC/DC}$.
Key Features of the LOGO! DM16/24R SIEMENS
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High-Density 16-Channel Capacity: Adds 8 digital 24V DC inputs and 8 relay outputs in a single 4-MW modular footprint.
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Versatile Relay Outputs: 8 potential-free relay contacts rated for 5A continuous resistive load (up to 240V AC/DC) per channel.
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Direct Backplane Bus Integration: Bus connector automatically routes logic communications and diagnostic signals to the LOGO! 8 main CPU module.
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Standard $35\text{ mm}$ DIN-Rail Mount: Compact stepped housing matches LOGO! 8 controller profiles and installs on standard EN 60715 profile rails.
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Wide Electrical Compliance: Fully certified to CE, cULus, FM, and maritime class standards (DNV GL, BV, ABS) for industrial and marine applications.
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Integrated Reverse Polarity Protection: Protects internal supply logic against field wiring mistakes.
Primary Applications
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Building & Lighting Automation: Controlling multi-zone lighting circuits, blinds, and ventilation actuators from a centralized LOGO! 8 PLC
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Marine Telemetry & Control Systems: Managing vessel bilge pump sequences, alarm status inputs, and generator interlocks
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Factory Floor Micro-Automation: Scaling digital I/O channels for conveyor systems, packaging machines, and process interlocks
Technical Specifications
| Parameter Category | Specification Details |
| Manufacturer / Brand | Siemens |
| Part Number / Order Code | LOGO! DM16/24R SIEMENS (6ED1055-1NB10-0BA2) |
| Compatible Controller | Siemens LOGO 8 Series |
| Supply Voltage | 24 V DC (Permissible range: $20.4–28.8\text{ V DC}$) |
| Digital Inputs | 8 Channels (24V DC, Signal 0: $< 5\text{V}$, Signal 1: $> 12\text{V}$) |
| Digital Outputs | 8 Channels (Relay Contacts) |
| Continuous Thermal Current ($I_{th}$) | Max. 5 A per relay |
| Max. Rated Relay Voltage | $240\text{ V AC/DC}$ |
| Incandescent Lamp Load | Max. 1000 W (at 25,000 switching cycles) |
| Width / Form Factor | $72\text{ mm}$ (4 Module Widths / 4 MW) |
| Mounting Type | $35\text{ mm}$ DIN Rail (EN 60715) or Wall Mount |
| Operating Temperature | 0°C to +55°C |
Package Contents
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1 × LOGO DM16/24R SIEMENS Digital Expansion Module Assembly
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Bus Connector Shield & Installation Reference Sheet