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1756-CFM | Allen-Bradley ControlLogix Configurable Flowmeter Module, 2 Inputs / 2 Outputs, 100 kHz
- Regular price
- $1,307.00
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- $1,307.00
- Regular price
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Product Description P/N: 1756-CFM
Description
The Allen-Bradley 1756-CFM is a high-speed configurable flowmeter module designed for precise flow measurement and control within ControlLogix systems. It supports two flowmeter inputs and two fast-response sourcing outputs, providing accurate, real-time processing for demanding industrial applications.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Allen-Bradley |
| Manufacturer | Rockwell Automation |
| Category | PLCs/Machine Control |
| Part Number | 1756-CFM |
| Subcategory | PLC Module / Rack |
| Suitable for Safety Functions | No |
| Digital Inputs Configurable | Yes |
| Digital Outputs Configurable | No |
| Voltage Type (Supply) | DC |
| Backplane Power | 1.7 W |
| Current Draw | 300 mA @ 5.1V, 16 mA @ 24V |
| Thermal Dissipation | 20.4 BTU/h |
| Module Keying | Electronic, software configurable |
| Outputs | 2 sourcing outputs, IEC 1A @ 24V DC |
| Inputs | 2 flowmeter inputs + 2 gate inputs |
| Max Input Frequency | 100 kHz |
| Frequency Resolution | 0.0005 Hz |
| Count Range | 2,147,483,647 |
| Isolation Voltage | 250V continuous |
| Output Switching Time | <50 µs ON, <300 µs OFF |
| Output Load Range | 10–31.2V DC for 40 mA–1 A |
| On-State Voltage Drop | 0.6 Ω × current |
| Off-State Leakage | <300 µA @ 31.2V DC |
| Short-Circuit Protection | Electronic |
| Reverse Polarity Protection | Yes (outputs only) |
| Wire Category | Category 2 (signal ports), 1 (power) |
| RTB Support | 1756-TBNH / 1756-TBSH |
| Slot Width | 1 |
| Operating Temp | 0–60 °C |
| Storage Temp | –40 °C |
| Relative Humidity | 5–95%, non-condensing |
| Shock Rating | 30G operating, 50G non-operating |
| Vibration | 2G @ 10–500 Hz |
| EMC & Immunity | IEC 61000-6-4, ESD 6–8 kV, RF 10 V/m |
Information About 1756-CFM
The 1756-CFM module is a high-performance flowmeter interface for the ControlLogix platform, providing two high-speed flowmeter inputs and two independent sourcing outputs for responsive flow control. Engineered for applications requiring rapid measurement and adjustment, it supports frequencies up to 100 kHz with exceptional resolution, allowing accurate and real-time flow data acquisition. Its compatibility with standard RTBs such as the 1756-TBNH and 1756-TBSH ensures organized wiring and easy integration into existing ControlLogix chassis. The module is built to withstand demanding industrial conditions, offering reinforced insulation, strong EMC immunity, and fast output response suitable for critical timing-based control applications. Designed with configurable input filtering, gate control capability, and assignable outputs, it provides flexibility for totalizing, batching, and high-precision flow control systems.
Key Features:
- Two High-Speed Flowmeter Inputs: Supports up to 100 kHz signals for accurate real-time flow measurement.
- Two Fast Sourcing Outputs: Provides rapid output switching for precise control of flow-related processes.
- Gate Inputs for Totalizing Mode: Enables prover and store count functions for advanced flow applications.
- High Resolution & Large Count Range: Offers 0.0005 Hz frequency resolution and a 32-bit count capacity.
- Integrated EMC and Overload Protection: Includes reinforced insulation, surge immunity, and electronic short-circuit protection.
- Configurable Input Filtering: Software-selectable filtering optimizes performance for high-frequency or low-frequency signals.
- RTB-Compatible Design: Supports 1756-TBNH or 1756-TBSH terminal blocks for efficient installation.
- Fast Output Switching: <50 μs turn-on time ensures rapid response in critical control loops.
- Rugged Industrial Construction: Resists shock, vibration, ESD, and harsh electrical environments.
- Optimized for ControlLogix Systems: Integrates seamlessly with Logix controllers for advanced flow processing.
The 1756-CFM delivers the reliability and precision required for high-speed flow measurement and control in modern industrial automation systems.
Description
The Allen-Bradley 1756-CFM is a high-speed configurable flowmeter module designed for precise flow measurement and control within ControlLogix systems. It supports two flowmeter inputs and two fast-response sourcing outputs, providing accurate, real-time processing for demanding industrial applications.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Allen-Bradley |
| Manufacturer | Rockwell Automation |
| Category | PLCs/Machine Control |
| Part Number | 1756-CFM |
| Subcategory | PLC Module / Rack |
| Suitable for Safety Functions | No |
| Digital Inputs Configurable | Yes |
| Digital Outputs Configurable | No |
| Voltage Type (Supply) | DC |
| Backplane Power | 1.7 W |
| Current Draw | 300 mA @ 5.1V, 16 mA @ 24V |
| Thermal Dissipation | 20.4 BTU/h |
| Module Keying | Electronic, software configurable |
| Outputs | 2 sourcing outputs, IEC 1A @ 24V DC |
| Inputs | 2 flowmeter inputs + 2 gate inputs |
| Max Input Frequency | 100 kHz |
| Frequency Resolution | 0.0005 Hz |
| Count Range | 2,147,483,647 |
| Isolation Voltage | 250V continuous |
| Output Switching Time | <50 µs ON, <300 µs OFF |
| Output Load Range | 10–31.2V DC for 40 mA–1 A |
| On-State Voltage Drop | 0.6 Ω × current |
| Off-State Leakage | <300 µA @ 31.2V DC |
| Short-Circuit Protection | Electronic |
| Reverse Polarity Protection | Yes (outputs only) |
| Wire Category | Category 2 (signal ports), 1 (power) |
| RTB Support | 1756-TBNH / 1756-TBSH |
| Slot Width | 1 |
| Operating Temp | 0–60 °C |
| Storage Temp | –40 °C |
| Relative Humidity | 5–95%, non-condensing |
| Shock Rating | 30G operating, 50G non-operating |
| Vibration | 2G @ 10–500 Hz |
| EMC & Immunity | IEC 61000-6-4, ESD 6–8 kV, RF 10 V/m |
Information About 1756-CFM
The 1756-CFM module is a high-performance flowmeter interface for the ControlLogix platform, providing two high-speed flowmeter inputs and two independent sourcing outputs for responsive flow control. Engineered for applications requiring rapid measurement and adjustment, it supports frequencies up to 100 kHz with exceptional resolution, allowing accurate and real-time flow data acquisition. Its compatibility with standard RTBs such as the 1756-TBNH and 1756-TBSH ensures organized wiring and easy integration into existing ControlLogix chassis. The module is built to withstand demanding industrial conditions, offering reinforced insulation, strong EMC immunity, and fast output response suitable for critical timing-based control applications. Designed with configurable input filtering, gate control capability, and assignable outputs, it provides flexibility for totalizing, batching, and high-precision flow control systems.
Key Features:
- Two High-Speed Flowmeter Inputs: Supports up to 100 kHz signals for accurate real-time flow measurement.
- Two Fast Sourcing Outputs: Provides rapid output switching for precise control of flow-related processes.
- Gate Inputs for Totalizing Mode: Enables prover and store count functions for advanced flow applications.
- High Resolution & Large Count Range: Offers 0.0005 Hz frequency resolution and a 32-bit count capacity.
- Integrated EMC and Overload Protection: Includes reinforced insulation, surge immunity, and electronic short-circuit protection.
- Configurable Input Filtering: Software-selectable filtering optimizes performance for high-frequency or low-frequency signals.
- RTB-Compatible Design: Supports 1756-TBNH or 1756-TBSH terminal blocks for efficient installation.
- Fast Output Switching: <50 μs turn-on time ensures rapid response in critical control loops.
- Rugged Industrial Construction: Resists shock, vibration, ESD, and harsh electrical environments.
- Optimized for ControlLogix Systems: Integrates seamlessly with Logix controllers for advanced flow processing.
The 1756-CFM delivers the reliability and precision required for high-speed flow measurement and control in modern industrial automation systems.