Purchase now: Allen Bradley 1747-OCSD60 Solid State Disk
Purchase now: Atlantechdrives provides you the 1747-OCSD60, a highly specialized, industrial-grade storage module engineered specifically for the legacy Allen Bradley SLC 500 Open Controller (1747-OC) architecture. In the late 1990s, integrating PC-based control into a rugged PLC chassis was a revolutionary step. The 1747-OCSD60 provides 60 Megabytes (60MB) of non-volatile, solid-state flash memory storage, acting as the primary boot drive and critical data repository for the Open Controller’s embedded operating system (such as MS-DOS or early Windows kernels). Because it lacks the spinning magnetic platters and fragile mechanical read/write heads of a traditional computer hard drive, this Solid State Disk (SSD) is virtually immune to the heavy vibrations, physical shocks, and electromagnetic interference typical of heavy manufacturing environments, such as metal stamping facilities and continuous CNC machining centers.
Technical Specifications of the 1747-OCSD60
The 1747-OCSD60 utilizes highly durable industrial flash architecture designed to retain data securely even when the SLC chassis is completely powered down. It integrates directly with the internal bus of the 1747-OC processor module.
- Part Number: 1747-OCSD60
- Component Type: Solid State Disk (SSD) / Flash Storage Module
- Compatible System: Allen Bradley SLC 500 Open Controller (1747-OC series)
- Storage Capacity: 60 MB
- Memory Technology: Non-volatile Industrial Flash
- Mechanical Resilience: Extremely high shock and vibration tolerance
- Primary Function: Operating System boot drive and program storage
Expert Tips: Upgrading from Mechanical Drives
Integrating a PC into a PLC chassis presents unique environmental challenges. Expert Tip: If your legacy 1747-OC system is currently running on an older mechanical hard disk, you are operating on borrowed time. The continuous 60Hz hum of factory transformers and the physical slamming of pneumatic actuators will eventually cause a mechanical drive head to crash, instantly destroying your machine’s operating system and control algorithms. Upgrading to the 1747-OCSD60 eliminates all moving parts from your storage architecture. This guarantees that your critical PC-based control logic boots up flawlessly every single time, drastically reducing unplanned downtime and IT-related maintenance on the factory floor.
Maintenance: Managing Flash Memory Lifespan
While solid-state disks are immune to vibration, legacy flash memory has a finite number of «write-cycles.» If you are running an operating system like Windows on the Open Controller, you must disable the virtual memory «Swap File» (Pagefile). Windows constantly writes small amounts of background data to the swap file. On a legacy 60MB flash disk, this continuous background writing will burn through the flash cells’ lifespan very quickly, causing the drive to fail prematurely. Configure your RTOS or Windows environment to run entirely in RAM, and only write to the 1747-OCSD60 when saving critical recipe changes or periodic daily production logs.
Frequently Asked Questions (FAQs)
Q: Will the 1747-OCSD60 work in a standard SLC 5/04 or 5/05 processor?
A: No. Standard SLC processors do not have an operating system or a hard drive interface. This module is exclusively designed for the PC-based 1747-OC (Open Controller) modules.
Q: Does this drive require an internal battery to save the data?
A: No. Flash memory is a non-volatile storage medium. It will retain your operating system and files indefinitely, even if the module is stored on a shelf without power for years.
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For stable optical data transmission, this module is technically compatible with high-performance processors such as the SLC 5/03 series.
