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Modbus protocol via RS232 / RS422 / RS485
The A1SJ71UC24-R4-S2 enables third-party devices to access MELSEC AnS and QnAS controllers using the MODBUS protocol.
Special features:
• Support for both ASCII and RTU procedures
• Slave functionality – up to 31 MELSEC controllers can be allocated to a third-party device.
• Support for functions 1, 3, 5–8, 11, 12, 15–17, 20 and 21
• Enables access to the entire data of AnAS respec. QnAS CPUs
Height (H)(mm) | 130 | Width (W)(mm) | 34.5 | Depth (D)(mm) | 93.6 |
---|---|---|---|---|---|
Interface | RS422 / 485 | Communication mode | Half duplex | Number of occupied I/O points | 32 points |
5 V DC internal current consumption(A) | 0.10 | Weight(kg) | 0.55 | Isolation | Photocoupler |
Module type | Slave | Synchronization | Asynchronous communications | Data transfer rate(bit/s) | 300 – 19200 |
Data transfer distance(m) | 500 | Data transfer mode | ASCII and RTU | Data format (bit) | 1 start bit, 7 or 8 data bits, 1 or 0 parity bits, 1 or 2 stop bits |
Error correction | Parity check (ASCII mode: LRC, RTU mode: CRC-16) |
Please check the type/dimensions/specifications of the part A1SJ71UC24-R4-S2 in the MELSEC AnS/QnAS MODBUS Slave Interface Module series.
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