The Acromag PMC521 module provides eight asynchronous serial communication ports from a single PMC Socket. Software-configuration helps you quickly set baud rates, character-sizes, stop bits, and parity.
For more efficient data processing, each serial port is equipped with 64-character FIFO buffers on the transmit and receive lines.
The data ports generate individually controlled transmit, receive, line status, data set, and flow control interrupts. A global interrupt source register provides interrupt status indication for all eight channels to speed up interrrupt parsing.
Features
- Eight asynchronous, full duplex RS422B serial ports (supports EIA485)
- 64-byte transmit FIFO buffers
- 64-byte receive FIFO buffers
- Programmable baud rate (up to 1.8432 Mbps)
- Line-break and false start-bit detection
- Failsafe receivers
- Socketed termination and bias resistors
- Industry-standard software-compatible 16C550 configuration registers
- Operating Temperature 0...+70°C (PMC521, PMC521R) or -40...+85°C (PMC521E, PMC521RE)
- High-density design lowers per-port costs and saves PMC carrier card slots for other functions.
- 64-byte FIFO buffers minimize CPU interaction for improved system performance.
- Extended temperature ranges deliver dependable operation in extreme conditions.
Ordering Options
| Manuf. Part No | | Part Description |
| 5086-x | | PMC Octal Serial Communication module with eight RS422B serial ports, front I/O connector, modified with user-specified crystal/baud rate. Specify x = crystal/baud rate in special requirements section on ordering page. Minimum quantity per order is two units |
| PMC521 | | PMC Module: Octal Serial Communication with eight RS422B serial ports, front I/O connector |
| PMC521E | | PMC Module: Octal Serial Communication with eight RS422B serial ports, front I/O connector, extended temperature range |
| PMC521R | | PMC Module: Octal Serial Communication with eight RS422B serial ports, rear I/O connector |
| PMC521RE | | PMC Module: Octal Serial Communication with eight RS422B serial ports, rear I/O connector, extended temperature range |
Accessories
| Manuf. Part No | | Part Description |
| 5025-288 | | Termination panel, DIN rail-mount, 68-pole screw terminals, SCSI-3 connector |
| 5028-432 | | Shielded cable, SCSI-3 68-pin connector, 1,8 m (6 ft.) long |
Software
| Manuf. Part No | | Part Description |
| PMCSW-API-VXW | | VxWorks® software support package |
| PCISW-API-WIN | | Windows® DLL Driver software package |
| PCISW-API-LNX | | Linux™ support (website download only) |
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