A1SJ71LP21

The Mitsubishi A1SJ71LP21 is a MELSECNET/10 Network module designed to enhance network capabilities. It occupies 32 I/O points (all special assignments) with a maximum of 8192 link points per network. Operating at a communication speed of 10 Mbps, which is equivalent to 20 Mbps for multiple transmissions, it employs a Token ring communication method with frame synchronization and NRZI encoding (Non-Return to Zero Inverted). The module utilizes a duplex optical loop transmission route format, conforming to the HDLC frame format. It supports up to 255 networks (PLC to PLC and remote I/O networks combined) and a maximum of 9 groups (for PLC to PLC networks). In terms of station connections, per PLC to PLC network, it accommodates 64 stations, from which there is only 1 control station and the rest 63 are normal stations. For remote I/O networks, it allows 65 stations, there is 1 remote master station and 64 remote I/O stations. The module covers an overall distance of 30 km using optical fiber cable as the connection medium, with a 2-core optical connector plug serving as the applicable connector. The A1SJ71LP21 draws a 5V DC current of 0.65 A and has a weight of 0.18 kg, ensuring efficient power consumption and a compact build. With its comprehensive specifications, this MELSECNET/10 Network module proves to be a reliable component in facilitating advanced networking capabilities within industrial automation systems, allowing for the seamless exchange of data and communication between multiple stations and devices.