Model Description
The 1746-HT is a high-speed analog input module specifically designed for Allen-Bradley SLC 500 programmable controllers. It enables precise and rapid data acquisition from analog field devices such as temperature sensors, pressure transmitters, and flow meters. With its high sampling rate and reliable signal conversion capabilities, this module is an ideal choice for applications requiring accurate process monitoring and control.
Engineered for industrial environments, the 1746-HT supports continuous operation with robust protection against electrical noise, temperature variations, and mechanical vibration.
Key Advantages
Provides high-speed analog data acquisition for the SLC 500 controller
Supports multiple sensor types, including thermocouples and resistance temperature detectors
Built-in diagnostics monitor channel status and detect faults
Rugged construction for harsh industrial environments
Simplifies integration into distributed control systems
Typical Application Areas
Industrial process monitoring, like temperature, pressure, flow.
Material handling and production line automation
Energy and utility systems requiring precision analog measurement
Retrofitting or expanding existing SLC 500 systems
Test and measurement applications in manufacturing plants
Technical Parameters
| Parameter | Specification |
|---|---|
| Manufacturer | Allen-Bradley |
| Model | 1746-HT |
| Module Type | High-Speed Analog Input |
| Compatible Controller | SLC 500 Series |
| Input Channels | 8 analog input channels |
| Sampling Rate | Up to 60 Hz per channel |
| Resolution | 12-bit |
| Isolation | Channel-to-backplane isolated |
| Operating Voltage | Supplied by SLC 500 backplane |
| Operating Temperature | 0 °C to +60 °C |
| Storage Temperature | –40 °C to +85 °C |
| Mounting | SLC 500 chassis slot |
Installation and Operation Precautions
Insert the module securely into the SLC 500 backplane slot.
Connect field devices according to channel identification and type.
Configure module parameters in the controller software before operation.
Monitor diagnostic indicators to ensure proper signal acquisition.

Frequently Asked Questions
Can this module handle both thermocouples and resistance temperature detectors simultaneously?
Yes, but each channel must be configured for the corresponding sensor type.
Is it suitable for high-speed data logging?
Yes, the module supports sampling rates up to 60 Hz per channel, making it suitable for various industrial applications.
Does it require external power?
No, the module is powered directly from the SLC 500 backplane.
Can it be used for retrofit projects?
Yes, the 1746-HT is compatible with existing SLC 500 chassis and can be used for system upgrades.
What Makes Us Different
in one-stop service
With 20 years of industrial automation expertise, we deliver one-stop procurement and delivery solutions covering both current and hard-to-find legacy components. Leveraging our global network and extensive inventory, we ensure critical parts are always available to minimize downtime.
We supply high-quality factory-sealed components, from PLCs and HMIs to drives and motor modules, all rigorously tested and packaged to guarantee reliability.

Customer Support Center
Sales Manager: Lydia
📧 Email: sales3@mooreplc.com
📱 WhatsApp: +86 180 2071 4662
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