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A1SJ71AR21
The Mitsubishi A1SJ71AR21 is a data link module suitable for industrial automation applications. It supports a maximum of 65 connectable stations and features a communication speed of 1.25 Mbps, making it reliable for data transmission in advanced control systems.
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Technical specifications for A1SJ71AR21
| Manufacturer | Mitsubishi |
|---|---|
| Product Line | A Series |
| Part Number | A1SJ71AR21 |
| Weight | 0.75 lbs (0.34 kg) |
| Module Type | Data Link Module |
| Max. Number of Link Points per Station | Up to max I/O points for the CPU used |
| Internal Current Consumption (5V DC) | 0.80A |
| Number of Occupied I/O Points | 32 points |
| System's Allowable Momentary Power Failure Time | Within 20ms |
| Communication Speed | 1.25Mbps |
| Communications Method | Half-duplex bit serial |
| Synchronous Method | Frame synchronous |
| Transmission Path Method | Duplex loop |
| Overall Loop Distance | Max. 10km (500m intervals between stations) |
| Number of Connectable Stations | Max. 65 stations (1 master, 64 local/remote) |
| Demodulation Method | CMI |
| Transmission Format | HDLC frame method |
| Cable Used | 3C-2V, 5C-2V equivalent |
The Mitsubishi A1SJ71AR21 model is designed as a comprehensive data link module for industrial control systems. This module can handle a maximum of 65 stations, with configurations for one master and up to 64 local or remote stations. The device occupies 32 I/O points while operating with an internal current consumption of 0.80A at 5V DC.
It ensures quick communication, achieving speeds up to 1.25 Mbps. It utilizes a half-duplex bit serial communication method for data transfer, ensuring a reliable connection throughout its operational range. The synchronous method uses frame synchronization to efficiently manage data packets during transmission.
In terms of transmission path methodology, the module uses a duplex loop, allowing for extended communication distances of up to 10 kilometers. 500-meter intervals between stations provide flexibility in network configuration.
The A1SJ71AR21 supports CMI for demodulation and employs the HDLC frame method to structure the transmission. Appropriate cabling configurations for this module include types equivalent to 3C-2V and 5C-2V. Compact in design, the module weighs only 0.33 kg, making integration into existing systems feasible while adhering to the allowable momentary power failure duration of up to 20 milliseconds.
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