Description
Product Name: 1745-E101/B Allen Braley Programmable controller
Product details:
The 1745-E101/B is designed to expand the Input/Output (I/O) capability of an Allen-Bradley SLC 100 or SLC 150 processor unit.
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Product Type: Discrete Expansion Unit
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PLC Platform: SLC 100 / SLC 150 (Discontinued)
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Function: Provides additional discrete I/O points (digital inputs and relay outputs) to the base PLC controller.
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Construction: Has the same physical construction as the SLC 100 processor unit.
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Connection: Connects to the base processor unit via a communication cable (e.g., 1745-C2).
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Identification: Features a hinged cover with color-coding and write-on areas for easy identification of external circuits.
⚙️ Product Specifications (1745-E101 Series)
| Specification | Detail |
| I/O Configuration | 10 Discrete Inputs / 6 Discrete Relay Outputs |
| Input Type | AC Digital (115 VAC nominal) |
| Input Voltage Range | 85-132 VAC (50/60 Hz) |
| Output Type | Relay Contact (Normally Open – N.O.) |
| Discrete Output Voltage | 10-250 VAC or 10-125 VDC |
| Continuous Current Rating | 2.5 A @ 120/240 VAC; 1.0 A @ 125 VDC |
| Power Supply (Internal) | 85-132 VAC or 170-265 VAC (50/60 Hz) |
| Fuse | Sano SOCSD4 D250V315Ma |
| Status Indicators | Individual LED for each I/O channel; DC Power LED |
| Operating Temperature | $0^\circ \text{C}$ to $60^\circ \text{C}$ (Some sources indicate up to $90^\circ \text{C}$, but $0^\circ \text{C}$ to $60^\circ \text{C}$ is a common control panel limit) |
| Humidity | 5% to 95% non-condensing |
| Weight | Approx. $4.06 \text{ lbs } (1.84 \text{ kg})$ |
✅ Product Advantages (Contextual)
When the SLC 100 platform was active, the 1745-E101 offered key benefits:
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I/O Expansion: It was the primary way to significantly increase the number of I/O points for the compact SLC 100/150 controller, allowing for control of more complex processes (up to a maximum of 112 I/O points for the total system).
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Relay Outputs: The relay outputs provide isolated switching of AC or DC loads with different voltage levels, offering versatility in connecting to various external devices like solenoids, contactors, and pilot lights.
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Ease of Use: The SLC 100 platform was known for its simplicity, ease of installation, and minimal maintenance requirements.
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Compact Design: It integrated seamlessly with the small footprint of the SLC 100/150 system.
⚠️ Important Precautions
Given this is a discontinued and legacy component, several precautions must be considered:
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Obsolete Status: The product is discontinued and is no longer manufactured or fully supported by Allen-Bradley. Replacement parts and factory support are extremely limited.
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Cooling and Spacing: Ensure recommended minimum spacing is maintained in the enclosure to allow for convection cooling and keep the operating temperature within the $0^\circ \text{C}$ to $60^\circ \text{C}$ range.
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Grounding: The entire unit must be properly grounded during installation to protect both the device and personnel.
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Series Compatibility: Ensure the Series B unit is compatible with any existing hardware and the application’s required functionality. Differences may exist between Series A and Series B versions (e.g., Hold-In Rungs in programming).
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Licensing: If the system requires software/firmware updates or programming, ensure you have the proper licensing for the legacy programming software (e.g., the original DOS-based software).
🏭 Product Applications
The 1745-E101 expansion unit was used in various industrial control and monitoring applications where a small, cost-effective PLC was needed, typically for small-to-medium-scale control.
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Small Machine Control: Controlling simple, discrete-event machines like packaging equipment, conveyor systems, or assembly stations.
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Process Monitoring: Basic monitoring and control loops in smaller processes.
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Building Automation: Simple control of HVAC, lighting, or access systems.
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Legacy Systems: Its primary application now is as a replacement part to maintain and repair existing, operational SLC 100/150 control systems that are still in use in factories worldwide.
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！
Colour：new Warranty: 12 months
Lead Time：3-day working day Country of origin: Sweden
Price: Please contact us Product weight：0.515kg
Shipping Port: Xiamen, China
Payment: Bank of Chicago, Bank of Singapore
Express cooperation: fedex, DHL, UPS and your express account
Service: Professional Sales provides 24 hours /7 days online service
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