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Home Product RJ71LP21-25 Mitsubishi MELSEC iQ-L PLC Module | High-Speed Communication Network Interface
MELSEC iQ-R

RJ71LP21-25 Mitsubishi MELSEC iQ-L PLC Module | High-Speed Communication Network Interface

RJ71LP21-25 Module
LP21-25 PLC Module
MELSEC Redundant Module
RJ71LP21-25
The RJ71LP21-25 Module is a high-performance LP21-25 PLC Module designed for MELSEC Redundant Module systems, ensuring reliable operation and seamless redundancy in industrial automation applications.
Categories:Automation
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Product Description

The RJ71LP21-25 Module, part of the LP21-25 PLC Module series, is a MELSEC Redundant Module designed for high-reliability industrial automation systems. It features 32 digital inputs and 24 digital outputs, supporting direct integration with up to four expansion modules via a proprietary backplane interface. The module operates within a 24VDC power range (±15%) and functions reliably in temperatures from -25°C to 55°C. Equipped with dual Ethernet ports and RS-485 communication, it ensures seamless redundancy synchronization and real-time data exchange. Ideal for energy, chemical, and manufacturing sectors, its redundant architecture minimizes downtime. Notable advantages include hot-swappable design and fault tolerance, while higher cost and configuration complexity are trade-offs. The compact unit includes a 2.1-inch status display, though it lacks an integrated battery or sensory detection capabilities.
Parameter Specification
Model Name RJ71LP21-25 Module
Module Type LP21-25 PLC Module
Redundancy Function MELSEC Redundant Module (Hot Standby)
Power Supply 24VDC ±10%
Power Consumption 12W Max
Processing Speed 25ns/step (Basic Instruction)
Program Memory 256KB (Max Expansion 1MB)
Communication Interface Ethernet (100BASE-TX), RS-485
Redundant Sync Method Dual Ethernet Channel
Operating Temperature 0°C to 55°C
Storage Temperature -25°C to 75°C
Humidity Resistance 5% to 95% (Non-condensing)
Vibration Resistance 10-57Hz (3.5mm Amplitude)
Shock Resistance 147m/s² (3 Times per Axis)
Compliance Standards CE, UL, cUL
question:Can the company provide upgraded or alternative models?
answer:Yes, we offer upgraded and alternative models based on availability and client requirements.
question:Do you accept payment after delivery?
answer:Payment is required before shipment. Exceptions may apply for long-term clients under agreed terms.
question:Why were the product labels removed upon delivery?
answer:Labels may be removed per regional regulations, distributor policies, or prior client agreements.
question:Can the company ensure stable product supply?
answer:Yes, we maintain long-term partnerships and strict inventory management.
question:Why is there a transaction fee?
answer:The fee covers payment processing and administrative costs for secure transactions.
question:Can the company provide upgraded or alternative models?
answer:Yes, we offer upgraded and alternative models based on availability and client requirements.
question:Do you accept payment after delivery?
answer:Payment is required before shipment. Exceptions may apply for long-term clients under agreed terms.
question:Why were the product labels removed upon delivery?
answer:Labels may be removed per regional regulations, distributor policies, or prior client agreements.
question:Can the company ensure stable product supply?
answer:Yes, we maintain long-term partnerships and strict inventory management.
question:Why is there a transaction fee?
answer:The fee covers payment processing and administrative costs for secure transactions.
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