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Discrete I/O Modules | Allen-Bradley 1771-SIM
Discrete I/O Modules | Allen-Bradley 1771-SIM
Brand/Manufacturer: Allen-Bradley
Order Number: 1771-SIM
Type: Discrete I/O Modules
Country of Origin: USA
Condition: Original Brand
Lead Time: Available in stock
Payment Term: 100% TT In Advance
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Description
The 1771-SIM is an industrial discrete input and output simulator module manufactured by Allen-Bradley (Rockwell Automation) for the 1771 Universal I/O system architecture. Designed for system debugging, PLC program verification, and control panel commissioning, this module provides 8 front-panel toggle switches for input simulation and 8 LED indicators for output monitoring, eliminating the need for physical field wiring during testing.
Input Simulation and Signal Verification
The front panel incorporates 8 individual toggle switches that allow commissioning technicians to manually apply logic HIGH or LOW signals directly to the system processor via the backplane. This permits real-time verification of control logic, alarm thresholds, and sequence timing before connecting actual field devices such as pushbuttons, limit switches, or proximity sensors.
Backplane Powering and Housing Design
Operating without external field power connections, the unit draws a modest 0.3 A current at 5 VDC directly from the 1771 Universal I/O rack backplane. The 8 dedicated LED status indicators receive control signals from the PLC output image table, visually displaying output channel states. The module occupies a single slot in any standard 1771 I/O chassis, making it an essential diagnostic tool for legacy PLC-5 control systems.
Parameter Specification
| Parameter | Specification |
|---|---|
| Model | 1771-SIM |
| Brand | Allen-Bradley (Rockwell Automation) |
| Product Category | Discrete Input/Output Simulator Modules |
| System Platform | PLC-5 / 1771 Universal I/O |
| Input Simulation | 8 toggle switches |
| Output Indication | 8 LED indicators |
| Operating Voltage | 5 VDC (from backplane) |
| Backplane Current | 0.3 A |
| Slot Requirement | 1 slot in 1771 Universal I/O chassis |
| External Wiring Requirements | None |
| Weight | 1.65 lbs (0.75 kg) |
Frequently Asked Questions
Q: How is the Allen-Bradley 1771-SIM module powered during testing? A: The module receives its required 5 VDC power directly from the 1771 chassis backplane bus, drawing 0.3 A without requiring external power supplies or field wiring.
Q: Can the 1771-SIM be used in any standard 1771 Universal I/O chassis slot? A: Yes, it is a single-slot module that installs into any standard 1771 rack position alongside standard digital or analog I/O cards.
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Testimonials
Fast Delivery, Excellent Quality
We’ve worked with IndustriaX Limited on several urgent orders for automation components. Their ability to provide original, factory-sealed parts with full documentation—often from in-stock inventory—has significantly reduced our downtime. The delivery is consistently fast, and their logistics team is highly responsive. IndustriaX has become one of our most trusted global suppliers for industrial spare parts.
- Sarah Johnson
We’ve worked with IndustriaX Limited on several urgent orders for automation components. Their ability to provide original, factory-sealed parts with full documentation—often from in-stock inventory—has significantly reduced our downtime. The delivery is consistently fast, and their logistics team is highly responsive. IndustriaX has become one of our most trusted global suppliers for industrial spare parts.
- Sarah Johnson
Reliable Partner for Original Parts
Finding authentic automation parts has always been a challenge, especially for discontinued models. IndustriaX Limited has impressed us with their genuine stock, clear product traceability, and prompt updates. We’ve verified their shipments against OEM specs multiple times, and the results are flawless. They’re now our preferred sourcing partner for critical systems.
- David Smith
Finding authentic automation parts has always been a challenge, especially for discontinued models. IndustriaX Limited has impressed us with their genuine stock, clear product traceability, and prompt updates. We’ve verified their shipments against OEM specs multiple times, and the results are flawless. They’re now our preferred sourcing partner for critical systems.
- David Smith
Professional Service with After-Sales Support"IndustriaX Limited doesn’t just ship products—they provide solutions. When we encountered installation issues with one of the modules, their technical team replied in less than 4 hours and provided wiring guides and troubleshooting tips. This level of post-sale support is rare in the spare parts sector. Their professionalism gives us confidence in every order."
- Emily Brown
"IndustriaX Limited doesn’t just ship products—they provide solutions. When we encountered installation issues with one of the modules, their technical team replied in less than 4 hours and provided wiring guides and troubleshooting tips. This level of post-sale support is rare in the spare parts sector. Their professionalism gives us confidence in every order."
- Emily Brown
Trusted Source for Industrial Automation Spares
We've tested multiple suppliers over the years, but IndustriaX Limited consistently stands out. Their product catalog is extensive, their team is knowledgeable, and they understand the urgency of industrial needs. With every order, we receive timely updates, fast delivery, and 100% genuine products. It’s rare to find such consistency and reliability in this field.
- Michael Anderson
We've tested multiple suppliers over the years, but IndustriaX Limited consistently stands out. Their product catalog is extensive, their team is knowledgeable, and they understand the urgency of industrial needs. With every order, we receive timely updates, fast delivery, and 100% genuine products. It’s rare to find such consistency and reliability in this field.
- Michael Anderson