1756-OF8I

Product Description

Home > Products > Allen-Bradley > Analog Output Modules Need Allen-Bradley 1756-OF8I? Analog Output Module for ControlLogix. Supplied with full traceability and documentation. Request a quote and current... Price & Availability It features 8 individually isolated output channels, each capable of providing either 0-20 mA or 4-20 mA current outputs, or 0-10V, ±10V, 0-5V, and ±5V voltage outputs. The module offers 16-bit resolution and a fast update rate of 2 ms for all channels, ensuring accurate and responsive control in demanding processes. This module is part of Rockwell Automation's ControlLogix platform, which is known for its scalability and robustness. The 1756-OF8I supports a wide operating temperature range of 0°C to 60°C (32°F to 140°F) and has a power dissipation of 4.5 W (typical) with a maximum of 5.5 W. It is designed to be installed in a ControlLogix chassis and communicates via the backplane, requiring no external power supply beyond the chassis power. The module provides channel-to-channel and channel-to-backplane isolation of 250V AC/DC, ensuring signal integrity and protecting against ground loops. It also features open-wire detection for current outputs and supports data formats including float, integer, and engineering units. With its high accuracy of 0.05% of full-scale range and a temperature drift of ±0.005% per °C, the 1756-OF8I is ideal for applications in process control, batch processing, and discrete manufacturing where reliable analog output is critical. The Allen-Bradley 1756-OF8I is a high-density ControlLogix analog output module designed for industrial automation applications requiring precise current or voltage output signals. Basic Product Information Configurable current (0-20 mA, 4-20 mA) or voltage (0-5V, ±5V, 0-10V, ±10V) outputs 16-bit resolution for high precision Channel-to-channel and channel-to-backplane isolation (250V AC/DC) Fast update rate: 2 ms for all channels Open-wire detection for current outputs Data formats: float, integer, engineering units High accuracy: 0.05% of full-scale range 8 isolated analog output channels Technical Specifications Version & Model Difference The 1756-OF8I is part of the ControlLogix analog output module family. Compared to the non-isolated 1756-OF8 module, the 1756-OF8I provides channel-to-channel isolation, which is essential in applications where ground potential differences exist. The 1756-OF8I also supports a wider range of output signals and includes open-wire detection. There are no major hardware revisions; however, firmware updates may be available through Rockwell Automation to enhance performance and add features. The module is compatible with all ControlLogix chassis and controllers, including L6x, L7x, and L8x series. Application Scenarios Can the 1756-OF8I be used with older ControlLogix controllers? Yes, the 1756-OF8I is compatible with all ControlLogix controllers, including L6x, L7x, and L8x series, as long as the chassis and firmware are compatible. What is the maximum update rate for the 1756-OF8I? The module has a fast update rate of 2 ms for all channels, ensuring responsive output updates for real-time control. Does the 1756-OF8I require an external power supply? No, the module is powered through the ControlLogix chassis backplane and does not require an external power supply. What is the difference between 1756-OF8 and 1756-OF8I? The 1756-OF8I provides channel-to-channel isolation, while the 1756-OF8 does not. The OF8I also supports a wider range of output signals and includes open-wire detection, making it suitable for applications where isolation is critical. Allen-Bradley 1734-IE8C POINT I/O 8-Channel Analog Input Allen-Bradley 800T-QH2R 30 mm Indicator Allen-Bradley 1746-P4 SLC 500 Power Supply Module Allen-Bradley 1756-L85E ControlLogix 5580 Controller Allen-Bradley 1756-L71 ControlLogix 5570 Controller Allen-Bradley 22B-D010N104 PowerFlex 40 AC Drive Allen-Bradley 1492-IFM40DS24A-4 Digital Interface Module Allen-Bradley 1492-IFM40F Digital Interface Module