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A1SJ71AT23BQ
The Mitsubishi A1SJ71AT23BQ module is designed as a local station data link module for efficient communication in automation systems. It supports multiple communication speeds and connects several stations within a specific network topology.
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Technical specifications for A1SJ71AT23BQ
| Manufacturer | Mitsubishi |
|---|---|
| Product Line | A Series |
| Part Number | A1SJ71AT23BQ |
| Weight | 4.56 lbs (2.07 kg) |
| Module Type | Local Station Data Link Module |
| Communication Speed | 125 kbps / 250 kbps / 500 kbps / 1 Mbps |
| Communication Method | Half duplex bit serial method |
| Synchronization Method | Frame synchronization method |
| Network Topology | Bus method |
| Overall Cable Distance | 125 kbps: 1200 m, 250 kbps: 600 m, 500 kbps: 400 m, 1 Mbps: 200 m |
| Max Number of Connected Stations | 32 stations (1 master station, 31 local/remote I/O stations) |
| Modulation Method | NRZI method |
| Transmission Format | HDLC compliant (frame type) |
| Error Control System | CRC (X^16 + X^12 + X^5 + 1) with retries and timeover |
| Communication Cable Type | Shielded twisted pair cable |
| Applicable Connector | Terminal block |
| Occupied I/O Points | 32 points (I/O assignment: Intelligent 32 points) |
| Internal Current Consumption (5 V DC) | 0.66 A |
| Operating Temperature Range | 0 to 55°C |
Mitsubishi's A1SJ71AT23BQ is a local station data link module that facilitates robust communication in automation networks. It operates at various communication speeds—125 kbps, 250 kbps, 500 kbps, and 1 Mbps—and employs a half-duplex bit serial method for data transfer. This module utilizes frame synchronization to ensure reliable data transmission and follows the bus topology for connectivity.
The A1SJ71AT23BQ can manage up to 32 interconnected stations, integrating one master station with up to 31 local or remote I/O stations. Cable distances vary based on the selected communication speed: a maximum of 1200 m at 125 kbps, 600 m at 250 kbps, 400 m at 500 kbps, and 200 m at 1 Mbps. The NRZI modulation technique is used for signaling, and the data transmission format adheres to HDLC standards.
The device includes a cyclic redundancy check (CRC) system for error management, allowing for retransmission and timing control when necessary. A shielded twisted pair cable is recommended for communication connections, interfacing through a terminal block. The module utilizes 32 I/O points, marked as intelligent, to enhance the functionality of connected devices. It has an internal current consumption of 0.66 A at 5 V DC and is designed to operate effectively from 0 to 55 degrees Celsius.
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