Is the serial communication port Full or Half-Duplex?
Both modes, as well as Simplex, are supported. The PIC USART allows transmission and reception at the same time (Full-Duplex). The IOCP-74 interface hardware and IOCPbios has been designed with this in mind. In the case of RS485, a 2-wire configuration will always be Half-Duplex. Also some protocols, MODBUS for example, are inherently Half-Duplex.
Related Questions
- Is the function access to the system also possible trough e.g. a serial communication port or paralel I/O control instead of manual selection through the front panel selector-switch?
- The Personal Computer used for communication with Yaskawa Products does not have a serial port. How can communication be established?
- Is the serial communication port Full or Half-Duplex?
