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Mitsubishi Melsec-Q QJ71LP21S-25

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QJ71LP21S-25

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The Mitsubishi QJ71LP21S-25 is a network module within the Melsec-Q series designed for versatile communication. It operates efficiently at a communication speed of either 25 Mbps or 10 Mbps and can connect up to 64 stations, accommodating one master and 63 nodes, over a maximum network length of 30 km.

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Technical specifications for QJ71LP21S-25

ManufacturerMitsubishi
Product TypeNetwork Module
Product LineMelsec-Q
Part NumberQJ71LP21S-25
Humidity10% RH to 90% RH (non-condensing)
Communication Speed25 Mbps or 10 Mbps
Maximum Station Count64 stations (1 master station and 63 nodes)
Maximum Network Length30 km
Max. Number of Link Points per Network8192 points
Transmission MethodDual loop
External Power Supply20.4–31.2 Volts DC
External Current Consumption0.20 Amps
Internal Consumption Rate at 5V DC0.55 Amps
Momentary Power Failure Tolerance1 ms
Connector Type2-core optical connector plug
Degree of ProtectionIP20
ComplianceCE, UL, cUL, RoHS
Operating Ambient Temperature0°C to 55°C
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The QJ71LP21S-25 from Mitsubishi is a specialized network module within the Melsec-Q series, supporting advanced communications for automation systems. With a communication speed capability of 25 Mbps or 10 Mbps, this unit allows for high-speed data exchange across a network of devices. It can connect a total of 64 stations, comprised of one master station and 63 additional nodes, and facilitates extensive communication across a network length that can reach up to 30 kilometers.

Designed to manage complex connections, the module can handle up to 8192 points within the network. It employs a dual loop transmission method which enhances reliability and efficiency in data handling. In terms of power requirements, the unit requires an external supply voltage between 20.4 and 31.2 volts DC, with an external current draw of 0.20 amps. The internal consumption rate at 5V DC is recorded at 0.55 amps.

This network module can withstand momentary power failures with a tolerance of up to 1 millisecond, ensuring minimal disruptions in performance. Connectivity is facilitated through a 2-core optical connector plug, enabling secure and effective data transmission. Additionally, it possesses a degree of protection rated at IP20, which indicates appropriate safety against solid objects, but is not suited for wet conditions.

The operating environment for the QJ71LP21S-25 is specified between 0°C to 55°C, making it adaptable for various industrial settings. Compliance with standards such as CE, UL, cUL, and RoHS emphasizes its safety and environmental considerations, assuring users of its reliability in diverse applications.