Description
Product Name: 1745-E105/C Allen Braley Programmable controller
Product details:
The Allen-Bradley 1745-E105/C is an Expansion I/O module designed to extend the I/O capabilities of the SLC 100 base unit (processor). The ‘C’ suffix indicates the Series C revision of the product.
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Product Type: Expansion Input/Output (I/O) Module.
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Series: SLC 100 (Small Logic Controller).
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Function: Expands the number of discrete inputs and/or outputs that the main SLC 100 processor can control, allowing for larger applications.
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Connectivity: It connects to the SLC 100 processor using a special expansion cable (e.g., 1745-C2).
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Status: The SLC 100 series is an older, now obsolete platform, meaning new parts are typically found only through surplus or secondary markets, and it is no longer actively manufactured or supported by Rockwell Automation (Allen-Bradley).
⚙️ Product Parameters (Specifications)
Based on the general specifications for the 1745-E105 module:
| Parameter | Specification |
| Product Line | SLC 100 (Small Logic Controller) |
| Part Number | 1745-E105/C |
| Module Type | Expansion I/O |
| Input Terminals | Typically 0 (This module often focuses on outputs or is used for system expansion, but input functionality depends on the specific variant or how it’s used within the SLC 100 system) |
| Output Terminals | 12 (Common configuration for the 1745-E105) |
| Output Type | Typically Relay or Solid State (Triac/Transistor), depending on the exact model variant. Relay outputs are common for this series. |
| Power Input | N/A (The module typically draws power from the main SLC 100 base unit or a dedicated expansion power supply) |
| Weight | Approx. 4.88 lbs (2.21 kg) |
| Series/Revision | Series C |
| Communication Cable | Requires a connecting cable like the 1745-C2 to link to the processor. |
Note: The exact configuration (e.g., input type/count, output type) for older modules can vary by the specific model variant or series revision.
✅ Product Advantages (When Current)
When the SLC 100 system was actively used, the 1745-E105/C offered several key advantages:
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System Scalability: It allowed users to expand the number of control points without upgrading to a much larger, more expensive PLC system, making the SLC 100 flexible for growing applications.
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Cost-Effective Expansion: Provided a relatively low-cost method to add I/O points to the existing SLC 100 base.
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Simplicity and Reliability: The SLC 100 platform was known for its simple programming structure and rugged, reliable operation in industrial environments.
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Discrete Control: Excellent for applications primarily requiring discrete (on/off) control of devices like relays, contactors, and lights.
⚠️ Important Considerations (Notes)
The most crucial considerations for this product are due to its age and status:
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Obsolete Product Line: The SLC 100 line is obsolete. Spare parts are scarce, and maintenance requires specialized knowledge.
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Lack of Vendor Support: Rockwell Automation no longer provides technical support or firmware updates for this product line.
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Modernization: Users are strongly encouraged to migrate to modern control platforms like the Allen-Bradley MicroLogix, Micro800, or CompactLogix series for enhanced features, connectivity, and active support.
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Compatibility: Ensure the module is compatible with the specific Series and revision of your existing SLC 100 base unit and power supply.
🏭 Product Applications
The SLC 100 series, including the 1745-E105/C expansion module, was typically used in smaller-scale, dedicated industrial applications where a low I/O count and basic control logic were sufficient.
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Small Machine Control: Basic control of standalone machines like packaging equipment, small conveyors, or test fixtures.
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Simple Process Control: Controlling minor batching, mixing, or dispensing operations.
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Building Automation: Simple control logic for HVAC or lighting systems in small buildings.
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Relay Replacement: Replacing complex panels of electro-mechanical relays with a more flexible, programmable solution.
Advantages: Foxboro, OVATION, TRICONEX, Allen-Bradley, ABB, Motorola, Siemens Moore, Ge Fanuc, Woodward, Bently Nevada and other major import brands!
We have the same series of models in stock. If you don’t find the model you need, please contact us and we will provide you with an official quotation！
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