Category: Industry trends

Product Overview

The Allen-Bradley 1756-HSC​ is a dedicated high-speed counter (HSC) module for the ControlLogix platform, designed to handle demanding applications requiring precise, high-frequency counting and measurement of digital pulse trains. This module serves as a critical interface between high-speed sensors—such as rotary encoders, linear scales, proximity sensors, and laser sensors—and the ControlLogix controller. Its primary function is to accurately count, totalize, and measure the frequency of fast digital signals that exceed the capability of standard digital input modules, offloading this computationally intensive task from the main processor. The Allen-Bradley 1756-HSC​ typically provides multiple independent counter channels (e.g., 4 channels), each capable of handling differential or single-ended inputs with sophisticated features like quadrature decoding for direction sensing, preset/rollover control, and integrated ladder logic comparison for generating precise outputs.As a specialized function module within the ControlLogix I/O system, the 1756-HSC​ provides deterministic performance essential for applications like cut-to-length, registration control, web tension monitoring, rotary knife positioning, and high-speed batching. It operates autonomously, processing input signals in hardware with minimal latency and updating its count values in the controller’s data table at a configurable rate. This ensures that high-speed events are captured with precision and without the jitter that could occur if processed in the main control program scan. The module’s value lies in its ability to enable precise positional control and measurement in high-speed machinery, directly contributing to product quality, material yield, and overall equipment effectiveness (OEE). By providing accurate, real-time feedback on speed, position, and length, the Allen-Bradley 1756-HSC​ empowers ControlLogix systems to execute complex motion coordination and high-speed sequencing that would otherwise be impossible with standard I/O.

Technical Specifications

Product Overview

The CUTLER-HAMMER 1755T-PMMP-1700, now under the Eaton brand, is a robust and versatile Operator Interface Panel, specifically belonging to the PanelMate 1700 series. This unit is engineered to serve as the primary human-machine interface (HMI) for industrial automation systems, providing operators with a clear, intuitive window into machine or process status and a reliable means for control input. Featuring a durable 7-inch color touch screen, the CUTLER-HAMMER 1755T-PMMP-1700​ is designed to replace arrays of traditional pushbuttons, selector switches, and indicator lights with dynamic, configurable graphical screens. Its core function is to display real-time data from connected controllers (such as PLCs, drives, or sensors), present alarms, log historical information, and accept operator commands through touch input, thereby bridging the communication gap between the complex logic of the control system and the personnel responsible for operation and troubleshooting.As a member of the PanelMate family, the CUTLER-HAMMER 1755T-PMMP-1700​ is built for the demanding conditions of the factory floor. Its panel-mount, sealed front bezel (typically rated NEMA 4X or IP65) protects the display from water, dust, oils, and cleaning chemicals, allowing it to be installed directly on machine enclosures or in washdown areas. The unit is powered by 24V DC, making it compatible with standard industrial control power supplies. It connects to automation networks via onboard communication ports, which commonly include Ethernet/IP for connectivity to modern Rockwell Automation controllers and serial ports (RS-232/485) for legacy devices or other protocols. The deployment of the CUTLER-HAMMER 1755T-PMMP-1700​ transforms machine operation by centralizing control onto a single, intelligent display. It enables the creation of custom screens with animated graphics, trend charts, and recipe management, significantly enhancing operational efficiency, reducing diagnostic time, and improving overall situational awareness. It represents a critical tool for implementing modern, user-friendly, and information-rich control interfaces in a compact and rugged form factor.

Technical Specifications

Product Overview

The Allen-Bradley 1747-SCNR​ is a high-performance ControlNet scanner and communication module specifically engineered for the Allen-Bradley SLC 500 series of programmable logic controllers. This advanced module serves as a critical network gateway, enabling an SLC 500 processor to act as a scanner (master) on a ControlNet network—a deterministic, high-speed industrial fieldbus. The primary function of the Allen-Bradley 1747-SCNR​ is to manage the exchange of I/O data and explicit messaging between the SLC 500 controller and other devices on the ControlNet network, such as remote I/O racks (e.g., 1747-ASB adapter in remote chassis), drives, operator interfaces, and other controllers. It effectively extends the local SLC 500 backplane across a robust, media-redundant network, allowing for the creation of distributed control systems where I/O and intelligent devices can be located far from the central processor, overcoming the limitations of a single, centralized chassis.Installed in any available I/O slot of an SLC 500 chassis (except slot 0, which is reserved for the processor), the 1747-SCNR​ module operates as a co-processor, offloading the complex network communication tasks from the main SLC CPU. It handles all ControlNet protocol responsibilities, including scheduled (deterministic) I/O data transfers and unscheduled (message-based) communications. The module provides two standard Bayonet Neill–Concelman (BNC) connectors for connecting to redundant coaxial trunklines, supporting the intrinsic media redundancy of ControlNet for high-availability applications. The Allen-Bradley 1747-SCNR​ is configured using Rockwell Automation’s RSNetWorx for ControlNet software, where the network scheduler is created, defining the update times and connections for all devices. This module was a key component for building medium to large-scale automation systems with the SLC 500 platform, providing deterministic performance suitable for interlocking, sequential control, and distributed process applications where precise timing and data consistency across multiple nodes are essential. It represents the bridge between the proven SLC 500 logic execution and the powerful peer-to-peer capabilities of the ControlNet network.

Technical Specifications

Main Features and Advantages

Deterministic Performance and High-Speed I/O Control: The core advantage of the Allen-Bradley 1747-SCNR​ is its ability to provide deterministic, repeatable I/O control over a distributed network. ControlNet uses a Concurrent Time Domain Multiple Access (CTDMA) method, which guarantees bandwidth and latency for scheduled I/O data exchanges. This means I/O updates between the SLC 500 scanner and its remote adapters occur at precisely defined intervals, ensuring predictable system performance critical for high-speed machine control and precise process interlocks. The module supports high-speed data transfer (5 Mbps), allowing for the efficient control of numerous remote I/O points spread across a large area, all synchronized to the same network update time (NUT).Robustness and System Integration: The 1747-SCNR​ supports media redundancy via its dual BNC ports, allowing the creation of a redundant coaxial trunkline. If a cable break or interference occurs on one leg, communication automatically switches to the other, maximizing network availability. The module acts as a powerful bridge, allowing the SLC 500 to seamlessly communicate not only with remote I/O but also with other ControlNet-compatible devices like PowerFlex drives, PanelView HMIs, and even other controllers (e.g., CompactLogix, ControlLogix) for peer-to-peer messaging. This transforms the SLC 500 from a standalone controller into a node within a larger, integrated control architecture. Configuration and monitoring are centralized through the industry-standard RSNetWorx software, providing powerful tools for network design, optimization, and diagnostics. The Allen-Bradley 1747-SCNR​ effectively future-proofed SLC 500 systems by enabling integration with one of the industry’s most robust deterministic networks, extending the capabilities and physical reach of the controller far beyond its local chassis.

Product Overview

The Allen-Bradley 1747-PIC/A​ is a specialized protocol interface converter, a critical communication gateway designed to enable connectivity between a personal computer (PC) and Allen-Bradley’s legacy DH-485 industrial network. This module serves as an indispensable tool for programming, configuring, and monitoring SLC 500 series programmable logic controllers, primarily the SLC 5/03 processor, which uses DH-485 as its primary communication port. The core function of the Allen-Bradley 1747-PIC/A​ is to perform real-time protocol conversion between the asynchronous serial RS-232 data from a computer’s serial (COM) port and the synchronous, token-passing DH-485 network protocol. It acts as an active node on the DH-485 network, managing network access and facilitating the exchange of configuration data, ladder logic programs, and real-time data tables between the programming software (such as RSLogix 500) running on the PC and the controllers on the network.Physically, the 1747-PIC/A​ is a compact device featuring a 9-pin D-sub female connector for the PC serial cable and an industry-standard 8-pin modular (RJ-45) connector for the DH-485 network cable. It requires an external 24V DC power supply for operation. In a typical setup, the module is connected directly to a PC’s serial port, and then via a shielded, twisted-pair cable to the programming port of an SLC 5/03 or to a DH-485 network trunk connecting multiple devices. The Allen-Bradley 1747-PIC/A​ is more than a simple cable; it contains the necessary electronics to handle the timing, arbitration, and electrical signaling differences between the two protocols. For maintenance personnel, system integrators, and engineers supporting facilities with a large installed base of SLC 500 controllers, the 1747-PIC/A​ is an essential piece of test equipment. It is the primary means of uploading, downloading, and troubleshooting control logic on these legacy systems. Its value is historical and practical, as it provides continued access to and support for thousands of SLC 500 systems that remain in reliable service worldwide, ensuring their maintainability and extending their operational lifecycle.

Technical Specifications

Main Features and Advantages

The Allen-Bradley 1747-PIC/A​ provides a reliable and dedicated solution for a very specific communication challenge. Its key feature is the robust protocol conversion that allows a standard PC serial port, a ubiquitous feature on older industrial laptops, to communicate natively with the proprietary DH-485 network. The module handles all the low-level protocol details, such as token passing and message framing, transparently to the user. This allows programming software like RSLogix 500 to communicate with the PLC as if it were connected via a simple serial cable, greatly simplifying the software setup and user experience. The module includes status LEDs that provide immediate visual feedback: a steady green POWER LED indicates proper 24V DC supply, and a flashing green/yellow COMMUNICATIONS LED indicates network traffic, which is invaluable for confirming that the physical connection is active and data is being exchanged.A significant advantage of the 1747-PIC/A​ is its role in enabling network connectivity. While it can be used for a point-to-point connection to a single SLC 5/03, it also allows the PC to become a node on a multi-drop DH-485 network. This enables an engineer to connect to any device on that network from a single connection point, which is essential for troubleshooting systems with multiple SLC racks, PanelView Standard terminals, or other DH-485 devices. The module provides electrical isolation (500V AC) between the PC, the network, and the power supply, which helps protect the sensitive computer hardware from electrical noise, ground loops, or surges that might be present on the industrial network. Although its data rate (19.2 kbps) is slow by modern standards, it was sufficient for programming and data monitoring tasks for the SLC 500 platform. The Allen-Bradley 1747-PIC/A​ is a focused, single-purpose tool that performs its job reliably, and its existence is a primary reason why SLC 500 systems remain serviceable decades after their introduction. For support teams, having a working 1747-PIC/A​ and a laptop with a serial port is often the first step in diagnosing any issue with a legacy SLC system.

Product Overview

The Allen-Bradley 1747-L532 E​ is a pivotal 16K memory SLC 5/03 processor module, representing a highly capable and versatile controller within the renowned SLC 500 programmable logic controller (PLC) family from Rockwell Automation. This processor serves as the central intelligence for small to mid-sized automation systems, executing user-defined ladder logic programs to control machinery, processes, and discrete manufacturing operations. The “E” suffix in the 1747-L532 E​ model denotes a specific hardware revision that includes enhanced features and reliability improvements over earlier versions. With 16K words of user memory, it provides ample space for complex control logic, data handling, and instruction sets. A key advancement of the SLC 5/03 series, embodied by this module, is the integration of multiple built-in communication ports, moving beyond the single channel of its SLC 5/02 predecessor and enabling more sophisticated network architectures.The Allen-Bradley 1747-L532 E​ is engineered for reliability in industrial environments and is designed to be installed in the leftmost slot of a 1746 modular I/O chassis. Its value lies in balancing processing power, communication flexibility, and cost-effectiveness for a wide range of applications. The processor controls all I/O modules within its chassis, processes ladder logic scans, manages data table operations, and facilitates communication with programming devices, operator interfaces, and other controllers. For countless facilities worldwide, the 1747-L532 E​ has been the workhorse controller for decades, managing everything from simple sequential machine control to more advanced applications involving analog control, data logging, and peer-to-peer messaging. It remains a critical component for maintaining, repairing, and extending the life of a massive installed base of SLC 500-based automation systems.

Technical Specifications

Parameter Name	Parameter Value
Product Model	1747-L532 E
Manufacturer	Allen-Bradley (ROCKWELL Automation)
Product Type	Programmable Logic Controller (Processor/CPU)
Controller Series	SLC 500, SLC 5/03 Family
User Memory	16K words
I/O Capacity	Up to 512 digital I/O points (max. chassis and module configuration dependent)
Data Memory	2K words (typically for timer, counter, integer files)
Built-in Ports	Channel 0: RS-232 (DH-485/DF1 protocol, for programming/HMI); Channel 1: RS-232 (DH-485 protocol only)
Communication Protocols	DH-485, DF1 Full-Duplex, DF1 Half-Duplex Slave
Optional Communication	Requires 1747-KE module for DH-485 network connectivity; Supports 1747-SN Scanner for Remote I/O
Backplane Current Draw	800 mA @ 5V DC (typical)
Battery	Lithium battery, 1747-BA or equivalent, for memory backup
Keyswitch	3-position (RUN, REM, PROG) for mode control
Status Indicators	Multiple LEDs for CPU status, force status, battery, and communication activity
Real-Time Clock	Not included; requires 1746-RTC module

Product Overview

The Allen-Bradley 1746-OW16/C/A​ is a high-density, 16-channel AC output module integral to the Allen-Bradley SLC 500 modular programmable controller system. Designed for direct control of alternating current loads, this module serves as a robust interface that translates the SLC 500 processor’s low-voltage logic commands into switched AC power outputs capable of driving industrial actuators, solenoids, contactor coils, and indicator lamps. Each of the sixteen outputs utilizes a solid-state Triac (TRIode for AC) switching element, providing reliable, fast, and silent operation without the moving parts and associated wear of electromechanical relays. The Allen-Bradley 1746-OW16/C/A​ is engineered to operate with both 120V AC and 240V AC systems, offering significant flexibility for global machine design and panel integration. Its primary value lies in providing a compact, high-point-count solution for controlling a large number of AC devices from a single slot in the SLC 500 chassis, optimizing cabinet space and system cost.As a key component in the versatile SLC 500 I/O family, the 1746-OW16/C/A​ module provides essential electrical isolation between the sensitive logic-level backplane of the PLC and the high-voltage AC field circuits. This isolation is critical for protecting the controller from voltage transients, noise, and potential faults present on the power lines. The module is designed to mount in any compatible 1746 series I/O chassis, where it communicates seamlessly with the processor. The “C” revision in the model number typically indicates a specific hardware version with enhanced features or compatibility. The Allen-Bradley 1746-OW16/C/A​ enables efficient control of distributed AC loads in applications ranging from machine automation and material handling to process control and building management, making it a fundamental building block for systems requiring reliable, multi-point AC switching under program control.

Product Overview

The Allen-Bradley 1747-BA​ is a critical lithium memory backup battery designed to preserve the program and data in the volatile memory of Allen-Bradley SLC 500 series programmable logic controllers (PLCs), specifically the SLC 5/03, SLC 5/04, and SLC 5/05 processors. This “aftermarket” designation indicates a high-quality, functionally equivalent replacement battery manufactured to meet or exceed the original specifications of the genuine Allen-Bradley component, offered as a reliable and cost-effective alternative for maintenance and lifecycle support. The primary function of the Allen-Bradley 1747-BA Aftermarket Battery​ is to provide a continuous, low-current power source to the processor’s RAM (Random Access Memory) when the main system power is removed. This prevents the loss of the user-created ladder logic program, variable data table values, and system configuration, which are essential for the machine’s operation. Without a functional battery, a power outage would result in a complete memory wipe, requiring a time-consuming and potentially costly program download from a backup, if one exists.This 3.6V Lithium Thionyl Chloride battery is engineered for long service life and stable voltage output, which is crucial for reliable memory retention over extended periods. The aftermarket version of the 1747-BA​ is constructed with the same physical form factor and electrical characteristics as the original, ensuring a direct, drop-in replacement that connects seamlessly to the battery connector on the SLC processor. Its value proposition is significant for facilities with a large installed base of SLC 500 controllers, as it provides a dependable means of preventing catastrophic data loss at a reduced total cost of ownership. Proactive, scheduled replacement of the Allen-Bradley 1747-BA Aftermarket Battery​ is a cornerstone of preventive maintenance for SLC 500 systems, safeguarding against unexpected production downtime and protecting the intellectual property embedded in the PLC program. It is a small component with an outsized role in maintaining system integrity and operational continuity.

Technical Specifications

Main Features and Advantages

Guaranteed Compatibility and Reliable Performance: A high-quality aftermarket 1747-BA​ battery is designed for guaranteed electrical and mechanical compatibility. It provides the exact 3.6V DC output required by the SLC processor’s memory circuit and features the correct 2-pin connector for a secure, plug-and-play installation. These batteries utilize high-grade Lithium Thionyl Chloride chemistry, known for its excellent energy density, long shelf life, and stable discharge curve. This ensures a consistent voltage supply to the memory chips over the battery’s entire service life, preventing data corruption that can occur with declining voltage from inferior cells. A reliable aftermarket Allen-Bradley 1747-BA​ will offer a capacity that meets or exceeds the original, providing the same or greater backup duration to protect your program during extended power outages or equipment storage.Extended Service Life and Cost-Effectiveness: Premium aftermarket batteries are engineered for longevity. With a typical service life of 3-5 years at room temperature, they match the performance expectations of the OEM part. This allows for predictable, scheduled maintenance, where the battery is replaced during a planned shutdown, eliminating the risk of an unexpected failure. The most significant advantage is cost-effectiveness. Aftermarket versions of the 1747-BA​ are typically available at a fraction of the cost of the OEM-branded battery, allowing facilities to maintain all their SLC 500 controllers proactively without a significant parts budget impact. This makes it economically feasible to implement a plant-wide battery replacement program, which is a best practice for preventing downtime.

Product Overview

The Allen-Bradley 1746-OV8/A​ is a fundamental 8-channel discrete DC output module from the prolific SLC 500 modular I/O system. This module functions as a critical interface between the programmable logic controller’s (PLC) logic solver and real-world DC actuation devices. Its primary role is to convert low-voltage digital command signals from the SLC 500 processor into robust, switched 24V DC power outputs capable of directly driving industrial loads. Each of the eight output channels acts as an independent electronic switch (sinking type) that closes to complete the circuit to ground, allowing current to flow from an external 24V DC supply through the connected load and into the module. The Allen-Bradley 1746-OV8/A​ is engineered for reliability and simplicity, providing a standardized method to command a variety of field devices such as relay coils, solenoid valves, pilot lights, and small motor starters based on the control program’s logic.As a core component within the SLC 500 platform, the 1746-OV8/A​ is designed for easy integration into a 1746 series I/O chassis, where it occupies a single slot. It represents the “muscle” of the control system, executing the commands determined by the processor’s ladder logic. The module provides electrical isolation between the sensitive internal logic circuits of the PLC and the potentially noisy power circuits of the field devices, enhancing system stability and protection. The value of the Allen-Bradley 1746-OV8/A​ lies in its proven durability, straightforward application, and pivotal role in closing the control loop. It translates complex automation algorithms into actionable physical outputs, enabling machinery to start, stop, position, and sequence operations. Its 8-point configuration offers a cost-effective density for a wide range of machine and process control applications, making it one of the most commonly deployed output modules in the extensive SLC 500 I/O catalog.

Technical Specifications

Main Features and Advantages

The Allen-Bradley 1746-OV8/A​ is distinguished by its robust and reliable solid-state design. Utilizing transistor outputs provides significant advantages over mechanical relay outputs, including faster switching speeds (suitable for pulse outputs up to 1 kHz), silent operation, and a much longer operational life with no moving parts to wear out. The sinking output configuration is a common industry standard, offering compatibility with a vast array of 24V DC industrial devices. Each output is protected by internal electronic fusing, which helps prevent damage to the module from short-circuit or overload conditions on any individual channel, enhancing overall system robustness and reducing maintenance costs. The module’s outputs are arranged in groups (typically two groups of four) with separate common terminals, providing flexible wiring options and allowing different sections of a machine to be powered from separate DC supplies if needed.Ease of use and integration are hallmarks of the Allen-Bradley 1746-OV8/A. Its clear per-point LED indicators provide instant visual confirmation of the output status, which is invaluable for troubleshooting and commissioning. The module interfaces with the SLC 500 processor via the chassis backplane, requiring no complex configuration—it is automatically recognized as an output module. Installation is simplified by the use of removable terminal blocks, which allow wiring to be completed on a bench before the module is snapped into the chassis. The Allen-Bradley 1746-OV8/A​ is designed for the demanding environment of industrial control panels, with a wide operating temperature range and protection against electrical noise. Its proven track record of reliability in countless installations makes it a trusted choice for system integrators and maintenance personnel, ensuring dependable performance for driving the essential actuators that make automated processes function.

Product Overview

The Allen-Bradley 1746-OBP16 is a 16-channel, DC sourcing output module designed for the SLC 500 programmable controller system from Rockwell Automation. This module serves as a critical interface between the digital logic of the SLC 500 processor and the physical actuators in an industrial environment. Its primary function is to convert low-power logic signals from the controller’s backplane into isolated switching signals capable of controlling external DC loads. The Allen-Bradley 1746-OBP16​ operates on the “sourcing” principle, meaning that when a channel is activated (turned ON by the PLC logic), it internally connects the load to the common positive voltage source (+VDC), allowing current to flow from the module’s terminal, through the load, to ground. This positive logic, 12-24 VDC module is engineered to reliably drive a wide array of field devices, providing the essential link that transforms control program decisions into physical actions on the factory floor.As a member of the extensive 1746 I/O module family, the 1746-OBP16​ is a fundamental building block for expanding the output capacity of any SLC 500 system, whether housed in a 4-slot, 7-slot, 10-slot, or 13-slot chassis. Its “OBP” designation breaks down as: “O” for Output, “B” for the specific electrical design series, and “P” for Positive Logic (sourcing). The module is valued for its high density (16 points in a single slot), straightforward integration, and proven reliability. In a typical control panel, the Allen-Bradley 1746-OBP16​ would be used to energize indicator lamps, small relays, solenoid valves, and other DC-powered devices that require a robust and electrically isolated switching signal. By providing individually fused outputs and optical isolation, the module protects the sensitive SLC 500 backplane from potential field-side faults like short circuits or overcurrent conditions. The 1746-OBP16​ represents a classic, workhorse output solution that has been instrumental in countless automation applications, known for its durability and ease of use in demanding industrial settings.

Technical Specifications

Main Features and Advantages

The Allen-Bradley 1746-OBP16​ output module delivers a robust set of features centered on protection, diagnostics, and ease of use. A primary advantage is its individual electronic fuse protection for each of the 16 output channels. This sophisticated design isolates a fault to the specific channel where it occurs—such as a shorted solenoid coil—preventing the fault from affecting neighboring channels or causing the module’s entire power supply to shut down. When a fuse operates, the channel’s LED indicator will flash, providing immediate visual diagnostics that guide the technician directly to the problematic circuit, dramatically reducing mean-time-to-repair (MTTR).Reliable Sourcing Design and Clear Diagnostics: The module’s sourcing (positive logic) output design is intuitive for many control panel layouts, where a common positive 24VDC rail is distributed. The 1746-OBP16​ provides excellent electrical isolation (500V rms) between the field wiring and the controller’s sensitive backplane, protecting the PLC from voltage transients and noise. Each channel’s bright red LED gives unambiguous confirmation of the output’s commanded state from the PLC program. The module is designed for high inrush capability, allowing it to reliably energize loads like solenoid valves and small relay coils that have high initial turn-on currents. Furthermore, the Allen-Bradley 1746-OBP16​ is engineered for the rigors of the industrial environment, with a wide operating temperature range and robust construction. Its use of a removable terminal block simplifies wiring and maintenance, as the entire block can be pre-wired on a bench before being snapped onto the module. This combination of high-density point count, individual channel protection, and clear diagnostics makes the 1746-OBP16​ a dependable and cost-effective choice for a vast array of standard DC output applications in SLC 500 systems.

Product Overview

The Allen-Bradley 1746-NO8V/A​ is an 8-channel, voltage-output analog output module designed for the Allen-Bradley SLC 500 programmable controller system. This module serves as a critical interface that translates digital control signals from the SLC processor into precise analog voltage signals used to command and regulate field devices. It occupies a single slot in a 1746 I/O chassis and provides eight independent output channels, each capable of generating a configurable voltage signal, typically in the industry-standard 0 to 10V DC range. The Allen-Bradley 1746-NO8V/A​ is engineered to control a wide array of analog actuators, including variable frequency drive (VFD) speed references, proportional valve positioners, analog chart recorders, and process controllers. Its function is to close the control loop by delivering the precise analog command signal calculated by the PLC’s logic or PID algorithm, enabling continuous modulation of speed, position, flow, or other process variables.As a key component in the SLC 500 I/O family, the 1746-NO8V/A​ provides a high-density, cost-effective solution for applications requiring multiple analog control outputs. Each channel is independently configurable via the controller’s programming software (such as RSLogix 500), allowing for different output ranges and data formats to match the requirements of the connected device. The module receives digital data words from the SLC processor over the chassis backplane, performs digital-to-analog conversion (DAC) with high resolution, and outputs a stable, low-noise voltage signal. The “/A” suffix often denotes a specific hardware revision or a standard product version. The design of the Allen-Bradley 1746-NO8V/A​ emphasizes accuracy and stability, incorporating features to minimize the impact of electrical noise commonly found in industrial environments. By providing reliable analog command signals, this module enables the SLC 500 platform to perform sophisticated closed-loop control tasks in process industries, machine control, and building automation, extending the utility of this versatile controller beyond simple discrete logic.

Technical Specifications