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1756-OF8 | Allen-Bradley ControlLogix 8 Current/Voltage Analog Output Module
- Regular price
- $709.00
- Sale price
- $709.00
- Regular price
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Product Description P/N: 1756-OF8
Description
The Allen-Bradley 1756-OF8 is an 8-channel analog output module designed for precise voltage and current output within ControlLogix automation systems. It supports ±10 VDC and 0–20 mA ranges with 15-bit resolution for accurate process control. Suitable for both local and distributed I/O, the module provides robust diagnostic and protection features for reliable industrial operation.
Technical Specifications
| Condition | New / Never Used Surplus |
| Brand | Allen-Bradley |
| Category | Industrial Automation |
| Part Number | 1756-OF8 |
| Subcategory | Analog Output Modules |
| Manufacturer | Rockwell Automation |
| Series | ControlLogix |
| Module Type | Analog Output |
| Outputs | 8 Current/Voltage |
| Output Voltage Range | ±10 VDC |
| Output Current Range | 0–20 mA |
| Resolution | 15-bit |
| Conversion Method | R-Ladder DAC, monotonic, no missing codes |
| Data Format | Integer (2's complement), IEEE 32-bit floating point |
| Short-Circuit Detection | Electronically current-limited ≤ 21 mA |
| Open-Circuit Detection | Current mode only |
| Overvoltage Protection | Up to 24 VDC |
| Backplane Current (5V) | 140 mA |
| Backplane Current (24V) | 210 mA |
| Power Dissipation (Max) | 4.9 W @ 60 °C |
| Isolation Voltage | 50 V continuous (250V reinforced / 1350V AC tested) |
| Removable Terminal Blocks | 1756-TBNH, 1756-TBSH |
| Enclosure | Open-style |
| Mounting Type | ControlLogix chassis |
| Operating Temperature | 0–60 °C |
| Output Signal | ±10.4 V, 0–21 mA |
| Standards | UL, CUL, CE, CSA, KC, CCC, Marine, RCM, NRTL |
| Type | Analog Output |
| Weight | 0.75 lb |
Information About 1756-OF8
The 1756-OF8 is part of Rockwell Automation’s ControlLogix I/O platform and is engineered for high-accuracy analog output in industrial automation systems. It supports eight independently configurable channels capable of delivering either voltage or current signals, with 15-bit resolution and highly stable output performance. The module provides fast update rates—8 ms in integer mode and 12 ms in floating-point mode—making it suitable for fast process applications. Enhanced protection features such as short-circuit limiting, open-circuit detection, and 24V overvoltage protection improve operational safety and system longevity. Reinforced isolation between the module and backplane ensures electrical separation for safe operation in noisy environments. With compatibility for removable terminal blocks and support for shielded and unshielded wiring, the 1756-OF8 simplifies installation and maintenance in both new and existing ControlLogix architectures.
Key Features:
- Eight Configurable Analog Outputs: Provides 8 independent channels that can output either ±10 VDC or 0–20 mA signals, supporting a wide range of control applications from valve positioning to precision instrumentation.
- High-Resolution 15-Bit Output: Delivers fine step resolutions of 320 µV/bit in voltage mode and 650 nA/bit in current mode, enabling highly accurate process adjustments and smooth control response.
- Advanced Conversion and Data Handling: Utilizes an R-ladder DAC with guaranteed monotonicity and no missing codes, while supporting both integer and 32-bit floating-point data formats for flexible integration.
- Integrated Protection and Diagnostics: Equipped with short-circuit limiting, open-circuit detection, and overvoltage protection, plus module health and calibration indicators for simplified troubleshooting and maintenance.
- Reinforced Isolation for Safety: Provides 250V reinforced isolation (tested at 1350V AC for 2 seconds) between the outputs and backplane, ensuring safe operation in environments with high electrical noise.
- Industrial-Grade Durability: Designed to withstand 30G shock, 2G vibration, and continuous operation from 0 to 60 °C, making it suitable for harsh industrial settings.
The 1756-OF8 delivers the reliability and precision required for demanding analog output applications across process control, motion control, and advanced industrial automation systems.
Description
The Allen-Bradley 1756-OF8 is an 8-channel analog output module designed for precise voltage and current output within ControlLogix automation systems. It supports ±10 VDC and 0–20 mA ranges with 15-bit resolution for accurate process control. Suitable for both local and distributed I/O, the module provides robust diagnostic and protection features for reliable industrial operation.
Technical Specifications
| Condition | New / Never Used Surplus |
| Brand | Allen-Bradley |
| Category | Industrial Automation |
| Part Number | 1756-OF8 |
| Subcategory | Analog Output Modules |
| Manufacturer | Rockwell Automation |
| Series | ControlLogix |
| Module Type | Analog Output |
| Outputs | 8 Current/Voltage |
| Output Voltage Range | ±10 VDC |
| Output Current Range | 0–20 mA |
| Resolution | 15-bit |
| Conversion Method | R-Ladder DAC, monotonic, no missing codes |
| Data Format | Integer (2's complement), IEEE 32-bit floating point |
| Short-Circuit Detection | Electronically current-limited ≤ 21 mA |
| Open-Circuit Detection | Current mode only |
| Overvoltage Protection | Up to 24 VDC |
| Backplane Current (5V) | 140 mA |
| Backplane Current (24V) | 210 mA |
| Power Dissipation (Max) | 4.9 W @ 60 °C |
| Isolation Voltage | 50 V continuous (250V reinforced / 1350V AC tested) |
| Removable Terminal Blocks | 1756-TBNH, 1756-TBSH |
| Enclosure | Open-style |
| Mounting Type | ControlLogix chassis |
| Operating Temperature | 0–60 °C |
| Output Signal | ±10.4 V, 0–21 mA |
| Standards | UL, CUL, CE, CSA, KC, CCC, Marine, RCM, NRTL |
| Type | Analog Output |
| Weight | 0.75 lb |
Information About 1756-OF8
The 1756-OF8 is part of Rockwell Automation’s ControlLogix I/O platform and is engineered for high-accuracy analog output in industrial automation systems. It supports eight independently configurable channels capable of delivering either voltage or current signals, with 15-bit resolution and highly stable output performance. The module provides fast update rates—8 ms in integer mode and 12 ms in floating-point mode—making it suitable for fast process applications. Enhanced protection features such as short-circuit limiting, open-circuit detection, and 24V overvoltage protection improve operational safety and system longevity. Reinforced isolation between the module and backplane ensures electrical separation for safe operation in noisy environments. With compatibility for removable terminal blocks and support for shielded and unshielded wiring, the 1756-OF8 simplifies installation and maintenance in both new and existing ControlLogix architectures.
Key Features:
- Eight Configurable Analog Outputs: Provides 8 independent channels that can output either ±10 VDC or 0–20 mA signals, supporting a wide range of control applications from valve positioning to precision instrumentation.
- High-Resolution 15-Bit Output: Delivers fine step resolutions of 320 µV/bit in voltage mode and 650 nA/bit in current mode, enabling highly accurate process adjustments and smooth control response.
- Advanced Conversion and Data Handling: Utilizes an R-ladder DAC with guaranteed monotonicity and no missing codes, while supporting both integer and 32-bit floating-point data formats for flexible integration.
- Integrated Protection and Diagnostics: Equipped with short-circuit limiting, open-circuit detection, and overvoltage protection, plus module health and calibration indicators for simplified troubleshooting and maintenance.
- Reinforced Isolation for Safety: Provides 250V reinforced isolation (tested at 1350V AC for 2 seconds) between the outputs and backplane, ensuring safe operation in environments with high electrical noise.
- Industrial-Grade Durability: Designed to withstand 30G shock, 2G vibration, and continuous operation from 0 to 60 °C, making it suitable for harsh industrial settings.
The 1756-OF8 delivers the reliability and precision required for demanding analog output applications across process control, motion control, and advanced industrial automation systems.
