Product Details
Product Overview
The 1747-L30A serves as a rugged, self-contained controller within the Allen-Bradley SLC 500 family. This "Fixed" I/O processor integrates the power supply, CPU, and I/O points into a single chassis, making it the ideal solution for small-scale automation and stand-alone machine control. It provides a total of 30 discrete I/O channels to manage localized industrial processes. We supply this unit as 100% Brand New and factory-original, ensuring you receive a device with zero-cycle internal components for maximum MTBF (Mean Time Between Failures).
Technical Specifications
The 1747-L30A combines logic processing and physical I/O within a streamlined, all-in-one hardware architecture.
| Feature | Specification |
| I/O Type | Fixed (Integrated) |
| Total I/O Channels | 30 Points |
| Discrete Inputs | 18 Channels |
| Discrete Outputs | 12 Channels |
| Input Voltage | 120/240V AC (Selectable) |
| Frequency Rating | 50/60 Hz |
| Communication Port | DH-485 (RJ-45) |
| Expansion Capability | Supports 2-Slot Expansion Chassis |
| Weight | 3.00 lbs (1.36 kg) |
Engineering Advantages
-
All-In-One Hardware Design: The 1747-L30A integrates the power supply and processor into the I/O base. This consolidated design significantly reduces panel space requirements and eliminates the assembly time associated with modular PLC systems.
-
Flexible Expansion Paths: While the unit features 30 fixed I/O points, the 2-slot expansion port allows for the addition of specialized modules. This enables the integration of analog I/O or additional communication modules without migrating to a larger, more expensive rack-based system.
-
Robust DH-485 Networking: The integrated DH-485 port facilitates high-speed peer-to-peer communication between other SLC controllers or PanelView HMI terminals. This ensures deterministic data exchange across the local machine network.
-
Industrial Power Versatility: The internal power supply accommodates both 120V and 240V AC inputs. This flexibility allows global deployment and ensures the controller maintains stable logic power even in environments with fluctuating mains voltage.
FAQs
-
Can I replace the internal processor if it fails?
The 1747-L30A utilizes a fixed architecture; the processor and I/O base form a single unit. If the CPU sustains damage, you must replace the entire block. Because we offer 100% Brand New units, you get a completely fresh hardware set including a new power supply and I/O circuitry.
-
How do I program the 1747-L30A?
You program the unit using RSLogix 500 software. Connection requires a 1747-PIC converter or a 1747-UIC (USB to DH-485) adapter to interface with the RJ-45 DH-485 port on the front of the controller.
-
Is this unit compatible with modern Allen-Bradley I/O?
The 1747-L30A supports specific 1746-series expansion modules via the 2-slot expansion chassis. It does not support newer 1769 Compact I/O or 1756 ControlLogix modules.
-
What is the benefit of buying a New unit instead of a refurbished one?
Refurbished 1747-L30A units often suffer from aged electrolytic capacitors in the power supply section. Our Brand New original stock ensures the capacitors and relay outputs have full service life, preventing unexpected power failure or contact sticking during critical operations.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
Understanding Marshalling Cabinets in Industrial Control Systems Architecture
Industrial control system deployments rely on structured signal distribution to bridge field instrumentation with central processing hardware. A marshalling cabinet serves as the vital intermediate connection point between heavy field home-run multi-pair cables and delicate input/output (I/O) modules housed inside Programmable Logic Controller (PLC) or Distributed Control System (DCS) enclosures. By segregating field cable terminations from control hardware, engineers maintain system flexibility, safeguard controller components, and streamline commissioning workflows.
FAT vs SAT in Industrial Control Systems: Key Differences and Execution Guide
Industrial control system deployment relies on strict verification protocols to guarantee operational safety, system stability, and regulatory compliance. Commissioning complex Programmable Logic Controller (PLC) racks, Distributed Control Systems (DCS), and Safety Instrumented Systems (SIS) requires two critical milestones: the Factory Acceptance Test (FAT) and the Site Acceptance Test (SAT). Both procedures validate that system automation meets design specifications, but they occur at different stages of project execution and target distinct operational risks.
Hub vs Switch vs Router in Industrial Automation Architecture
Modern factory automation relies on reliable industrial networking infrastructure to exchange real-time field data across operational technology systems. Engineers often encounter networking hardware like hubs, switches, and routers when integrating Programmable Logic Controllers, Distributed Control Systems, and SCADA monitoring nodes. Although these devices share physical ports, they operate at different layers of the Open Systems Interconnection reference model and deliver distinct traffic management capabilities.