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1794-OF8IH | Allen-Bradley FLEX I/O HART Isolated Analog Current Output Module 8-Channel
- Regular price
- $1,735.00
- Sale price
- $1,735.00
- Regular price
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Product Description P/N: 1794-OF8IH
Description
The Allen-Bradley 1794-OF8IH is an isolated analog output module designed for use within the FLEX I/O 1794 platform. This unit provides eight configurable current output channels with HART capability, supporting 0–20 mA and 4–20 mA ranges with 16-bit digital-to-analog conversion.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Allen-Bradley |
| Category | Drives |
| Part Number | 1794-OF8IH |
| Subcategory | Output Module |
| Series | FLEX I/O 1794 |
| Module Type | Isolated Analog Current Output with HART |
| Number of Outputs | 8 Isolated Channels |
| Output Signal Ranges | 0–20 mA; 4–20 mA |
| Resolution | 16-bit, Unipolar |
| Conversion Rate | 10 ms |
| Conversion Method | 16-bit Digital-to-Analog Converter |
| Thermal Dissipation (Max) | 17.06 BTU/hr at 24 V DC |
| Power Dissipation (Max) | 5.0 W at 24 V DC |
| FlexBus Current Draw | 80 mA at 5 V DC |
| Terminal Base Compatibility | 1794-TB3, 1794-TB3S |
| Data Formats Supported | Engineering Units, Percent, RAW/Proportional Count |
| Calibration | Factory Calibrated |
| Operating Temperature | 32 to 131 °F (0 to 55 °C) |
| Output Current | 0–20 mA or 4–20 mA |
| HART Support | Yes, with dedicated pass-through queues |
Information About 1794-OF8IH
The 1794-OF8IH is part of the FLEX I/O 1794 series, a modular family known for distributed control and flexible installation. Its construction incorporates isolated output circuitry, onboard digital-to-analog conversion, and HART communication support. The module is compatible with 1794-TB3 and 1794-TB3S terminal bases, allowing straightforward mechanical and electrical integration into existing FLEX I/O assemblies. Typical applications include process control loops, smart instrumentation networks, and systems that require isolated current outputs combined with HART pass-through capabilities.
Key Features:
- Eight isolated current outputs: Independent 0–20 mA or 4–20 mA channels.
- 16-bit resolution: Provides precise unipolar digital-to-analog conversion.
- HART pass-through support: Enables communication with smart field devices.
- Fast conversion rate: Performs data updates every 10 milliseconds.
- Factory calibration: Ensures accuracy without onsite adjustment.
- FLEX I/O base compatibility: Installs on 1794-TB3 or 1794-TB3S terminal bases.
- Lead break and range alarm detection: Supports diagnostic monitoring.
- Low FlexBus power draw: Consumes only 80 mA at 5 V DC.
The 1794-OF8IH delivers the reliability and precision required for modern analog output and HART-enabled process control applications.
Description
The Allen-Bradley 1794-OF8IH is an isolated analog output module designed for use within the FLEX I/O 1794 platform. This unit provides eight configurable current output channels with HART capability, supporting 0–20 mA and 4–20 mA ranges with 16-bit digital-to-analog conversion.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Allen-Bradley |
| Category | Drives |
| Part Number | 1794-OF8IH |
| Subcategory | Output Module |
| Series | FLEX I/O 1794 |
| Module Type | Isolated Analog Current Output with HART |
| Number of Outputs | 8 Isolated Channels |
| Output Signal Ranges | 0–20 mA; 4–20 mA |
| Resolution | 16-bit, Unipolar |
| Conversion Rate | 10 ms |
| Conversion Method | 16-bit Digital-to-Analog Converter |
| Thermal Dissipation (Max) | 17.06 BTU/hr at 24 V DC |
| Power Dissipation (Max) | 5.0 W at 24 V DC |
| FlexBus Current Draw | 80 mA at 5 V DC |
| Terminal Base Compatibility | 1794-TB3, 1794-TB3S |
| Data Formats Supported | Engineering Units, Percent, RAW/Proportional Count |
| Calibration | Factory Calibrated |
| Operating Temperature | 32 to 131 °F (0 to 55 °C) |
| Output Current | 0–20 mA or 4–20 mA |
| HART Support | Yes, with dedicated pass-through queues |
Information About 1794-OF8IH
The 1794-OF8IH is part of the FLEX I/O 1794 series, a modular family known for distributed control and flexible installation. Its construction incorporates isolated output circuitry, onboard digital-to-analog conversion, and HART communication support. The module is compatible with 1794-TB3 and 1794-TB3S terminal bases, allowing straightforward mechanical and electrical integration into existing FLEX I/O assemblies. Typical applications include process control loops, smart instrumentation networks, and systems that require isolated current outputs combined with HART pass-through capabilities.
Key Features:
- Eight isolated current outputs: Independent 0–20 mA or 4–20 mA channels.
- 16-bit resolution: Provides precise unipolar digital-to-analog conversion.
- HART pass-through support: Enables communication with smart field devices.
- Fast conversion rate: Performs data updates every 10 milliseconds.
- Factory calibration: Ensures accuracy without onsite adjustment.
- FLEX I/O base compatibility: Installs on 1794-TB3 or 1794-TB3S terminal bases.
- Lead break and range alarm detection: Supports diagnostic monitoring.
- Low FlexBus power draw: Consumes only 80 mA at 5 V DC.
The 1794-OF8IH delivers the reliability and precision required for modern analog output and HART-enabled process control applications.