These modules provide an asynchronous serial communication interface for your system. The IP502 has four asynchronous, half-duplex RS485 serial ports. It provides a cost-effi cient interface to RS485 multi-driver networks which support up to 32 nodes. However, for full handshaking support, use the full duplex IP501.
Software-confi guration quickly sets the baud rate, character-size, stop bits, and parity.
For more effi cient data processing, each serial port is equipped with 16-character FIFO bu ffers on the transmit and receive lines.
Features
- Four asynchronous, half-duplex RS485 serial ports
- 16-byte FIFO bu ffers
- Programmable baud rate (up to 512Kbps) (consult systerra for custom rates up to 1M bps)
- Individually controlled interrupts (unique vectors for each port)
- Line-break and false start-bit detection
- Industry-standard 16C550 family UART includes software-compatible 16C450 mode
- Failsafe receivers guarantee a high output state when the inputs are left open or fl oating.
- Internal diagnostics help detect communication faults.
- 16-byte FIFO buff ers minimize CPU interaction for improved system performance.
Ordering Options
| Manuf. Part No. | | Product Description |
| IP502 | | Four RS485 serial ports |
Software
| Manuf. Part No. | | Product Description |
| IPSW-API-VXW | | VxWorks® software support package |
| IPSW-API-WIN32 | | 32-bit Windows® DLL driver software support package |
| IPSW-API-WIN64 | | 64-bit Windows® DLL driver software support package |
|
