Product Overview and Specifications

This is a valuable product that has already been discontinued.

Data link system: Optical data link system Communication speed: 1.25 Mbps
Communication method: Half-duplex bit-serial method Total extension distance: Maximum 10 km (1 km between stations)
Number of connected stations: Max. 65 stations (master station: 1, total of local stations and remote I/O stations: 64)

MELSECNET mode Maximum number of link points in one system: 1024 points, 128 bytes (link relay) / 1024 points, 2048 bytes (link register)
・Maximum number of link points per station: 1024 bytes

MELSECNET II mode Maximum number of link points per system: 4096 points, 512 bytes (link relay) / 4096 points, 8192 bytes (link register)
・Maximum number of link points per station: 1024 bytes (first half of link parameters) / 1024 bytes (second half of link parameters)

MELSECNET II mixed mode Maximum number of link points in one system: 4096 points, 512 bytes (link relay) / 4096 points, 8192 bytes (link register)
・Maximum number of link points per station: 1024 bytes (first half of link parameters) / 1024 bytes (second half of link parameters)

Manufacturer's suggested retail price: 150,000 yen

Please see the manufacturer page for details.

Product Condition

I have confirmed that it works properly. We are checking the following:
・Connect A2ACPU + AJ71AP21 and A2USHCPU + A1SJ71AP21 with an optical cable to configure a network, and link devices (link memory, link register, XY) can be shared normally between both stations.
・By monitoring the link special relay, it is confirmed that the communication of both the main loop and the sub loop is normal, and that the hardware abnormality detection is OFF (normal).

Year of manufacture: 1999

There are some small scratches here and there, and there are some discoloration on the whole, but the condition is relatively good.