As a professional supplier, Feimu Technology has been deeply involved in the field of industrial control spare parts. Our Allen Bradley 1746-IH16, a 16-point high-density DC input module specifically designed for industrial high-speed control, precisely fits the Allen Bradley SLC 500 control system. It solves the urgent problems of input module failures and shortage of spare parts in old systems. We strictly control Quality throughout the process.
Our actual measurement has revealed that the most outstanding feature of 1746-IH16 is its high-density channel design. Unlike the old 4-point and 8-point input modules, it achieves 16 channels within the same rack space, enabling the connection of more sensors, significantly saving control cabinet space. It is particularly suitable for industrial sites with limited space. As a supplier, a company deeply involved in industrial control, we are well aware of the pain points in upgrading old systems and replacing spare parts. This module does not require rack modification and can directly be adapted to the SLC 500 system. It is easy to use and significantly reduces the replacement and debugging time.
In addition, its optical isolation technology is another highlight. It can effectively separate the on-site logic system from the PLC system. In case of external line short circuits or high-voltage intrusions, it can effectively protect the precious CPU and avoid damage to the core components, with extremely strong protective performance. It completely solves the problems of equipment damage caused by on-site signal interference and line faults.
|
Parameter Name |
Specific Specifications |
|
Product Model |
Allen Bradley 1746-IH16 |
|
Product Series |
Allen Bradley SLC 500 Series |
|
Module Type |
16-point High-density DC Input Module |
|
Input Signal |
24V DC |
|
Response Speed |
Millisecond Level |
|
Key Technology |
Optical Isolation Technology |
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Anti-interference Ability |
Strong Anti-common-mode Interference |
|
Application Platform |
Allen Bradley SLC 500 Control System |
The performance of the 1746-IH16 is extremely stable. It is specifically designed to receive 24V DC signals and has an extremely fast response speed. Once the on-site photoelectric switches or limit switches act, it can transfer the status to the CPU within a few milliseconds, completely not hindering the logic control. It is suitable for industrial high-speed control scenarios.
The most crucial point is that its anti-interference ability is extremely strong. Even if the wiring on site is long and the voltage has a slight attenuation, it can accurately determine the on-off state of the signal and will not have situations where the signal fluctuates severely causing the CPU to make a wrong judgment. The products we supply are all brand new and have stable performance and smooth operation. They completely solve the pain points of old modules with slow response and poor anti-interference, ensuring that the system can stably receive every signal from the site.
Based on our practical experience, the Allen Bradley 1746-IH16 module has an extremely wide range of applications. The most common ones include product counting on packaging lines, limit switch detection for assembly machinery, and integration of photoelectric sensors in material conveying systems. As long as there is a scenario where on-site switch signals - such as button presses, position arrivals, object passes, etc. - need to be transmitted to the PLC for logical control, this module is the first choice.
It is the core sensor for system perception of on-site actions, compatible with various industrial scenarios based on the SLC 500 system. Whether it's replacing spare parts for old systems or supporting new systems, it can be perfectly adapted. At the same time, the product is affordable in price and has high cost-effectiveness. As a professional supplier, we enable everyone to obtain high-quality input modules at the optimal cost.
The 1746-IH16 packs 16 input points into a single module. This is a significant upgrade over older 4-point and 8-point input modules.
| Comparison | 1746-IH16 | Older 8-Point Module | Older 4-Point Module |
|---|---|---|---|
| Input points per module | 16 points | 8 points | 4 points |
| Modules needed for 16 inputs | 1 module | 2 modules | 4 modules |
| Slots required | 1 slot | 2 slots | 4 slots |
| Wiring density | High | Medium | Low |
| Best for | Space-constrained cabinets | General applications | Systems with spare slots |
For systems with limited rack space, the 1746-IH16 provides a practical solution. Using one module instead of four frees up rack slots for other functions. This is especially valuable in older SLC 500 systems where replacement chassis may be difficult to find.
The 1746-IH16 is designed for high-speed control. Its input delay is significantly faster than standard input modules.
Response time comparison:
When to use high-speed inputs:
Field issue example: A customer used a standard 8ms input module for a fast-moving conveyor. Parts were passing by too quickly. The PLC missed some parts. Count was inaccurate. Replaced with a 1746-IH16. The 0.5ms response captured every part. Count accuracy returned to 100%.
The Allen Bradley 1746-IH16 uses a detachable terminal block. Correct wiring ensures reliable operation and accurate signal detection.
Terminal assignment:
Wiring rules:
Common wiring mistake: Connecting a 12V DC sensor to the input. The 1746-IH16 requires 15V minimum for ON state. A 12V signal may not be recognized. Always use 24V DC sensors or verify the sensor output voltage before connecting.
The 1746-IH16 has one diagnostic LED for each of the 16 input channels. The LEDs are visible on the front panel when the module is installed.
LED behavior:
Diagnostic checks:
Allen Bradley 1746-IH16 modules are commonly counterfeited. Use these checks to verify authenticity.
If the module shows incorrect readings or the LEDs behave abnormally, suspect a counterfeit. Contact Feimu Technology with photos for verification.
Feimu Technology does not ship untested modules. Each 1746-IH16 goes through the following verification process before leaving our warehouse.
Test reports are available upon request. Email sales@feimutech.com for a copy of your module's test report.
Based in Jiangmen, Guangdong, Feimu Technology has been a dedicated supplier of industrial automation components since 2005. We focus on one thing: helping customers keep their production lines running with reliable spare parts and honest service.
Q: Can the Allen Bradley 1746-IH16 directly be compatible with all SLC 500 control systems?
A: It is specially designed for the Allen Bradley SLC 500 system and can directly be compatible with this series of control systems. Replacing the old modules does not require any modification of the frame. The wiring is simple, and engineers familiar with the SLC 500 system can complete the replacement quickly.
Q: Can optical isolation technology effectively protect the CPU?
A: Optical isolation technology can effectively separate the on-site logic system from the PLC system. In case of external circuit short circuits or high-voltage intrusions, it can block the transmission of faults, protecting the CPU from damage. The module also has strong shock resistance capabilities.
Q: How effective is the anti-interference performance?
A: The Allen Bradley 1746-IH16 has extremely strong resistance to common-mode interference. Even if the wiring in the field is long and the voltage slightly decreases, it can accurately identify the signal's on-off state without any signal fluctuations or misjudgments, making it suitable for complex industrial environments.
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No. 26, Yuhu Street, Encheng Subdistrict, Enping City, Jiangmen City, Guangdong Province, China
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