Product Details
Overview
The 1785-MR by Allen-Bradley is a 4K RAM memory module engineered for PLC-5 systems, offering reliable program storage and secure data backup. Designed for standard PLC-5 processors, this module ensures consistent system operation and protection of critical control programs.
Technical Specifications
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Model: 1785-MR
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Module Type: RAM Memory Module
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Memory Capacity: 4K Words
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Write Protection: Removable jumper for safe memory operation
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Primary Function: Program backup and temporary storage
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Supported Processors: Standard PLC-5 series
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Backplane Power Requirement: 2.5 A at 5 V DC
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Certifications: UL Listed, CSA Approved
Compatibility
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Works with PLC-5 processors including:
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1785-LT (PLC-5/10)
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1785-LT2 (PLC-5/12)
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1785-LT3 (PLC-5/15)
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1785-LT4 (PLC-5/25)
Environmental Conditions
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Operating Temperature: 0° to 60° C (32° to 140° F)
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Storage Temperature: –40° to 85° C (–40° to 185° F)
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Relative Humidity: 5–95% (non-condensing)
Size & Dimensions
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Dimensions: 2.18L x 1.73H x 0.69D in (55.4 x 43.9 x 17.4 mm)
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Weight: Approx. 340 g
Additional Features
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Compact and robust design for PLC-5 backplanes
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SRAM memory ensures stable, high-speed performance
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No removal under power (RIUP) support
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Easy integration into existing PLC-5 systems
Applications
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Industrial automation PLC-5 systems
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Program backup and memory extension
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Data protection and control system redundancy
FAQ
Q: Can this module be used with all PLC-5 processors?
A: Yes, it is compatible with all standard PLC-5 series processors listed above.
Q: Is hot-swapping supported?
A: No, removal under power is not supported.
Q: What type of memory is used?
A: This module uses SRAM with a removable write-protection jumper.
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
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