This table contains the settings for data transmission over the serial interface.
Note: Please note that all of these parameters can be overwritten by
the remote site if the RFC2217 negotiation is active. Current settings
can be viewed in the status menu.
LANconfig: COM ports / Server / Serial interface
WEBconfig: Setup / COM-Ports / COM-Port-Server / COM-Port-Settings
- Device type Selects a serial interface from the list of those available in the device.
- Port number Some serial devices such as the CardBus have more than one serial port. Enter the number of the port on the serial interface that is to be used for the COM-port server.
- Bitrate Bitrate used on the COM port
- Data bits: Number of data bits.
- Parity The checking technique used on the COM port.
- Stop bits Number of stop bits.
- Handshake The data-flow control used on the COM port.
- Ready condition The ready condition is an important property of any serial port. The COM port server transmits no data between the serial port and the network if the status is not "ready". Moreover, the transition from the "ready" to the "not ready" states is used to establish and cancel TCP connections in client mode. There are two ways of determining whether the port is ready or not. In DTR mode (default) only the DTR handshake is monitored. The serial interface is considered to be ready for as long as the DTR line is active. In data mode, the serial interface is considered to be active for as long as it receives data. If no data is received during the timeout period, the port reverts to its not-ready status.
- Ready-Data-Timeout The timeout switches the port back to the not-ready status if not data is received. This function is deactivated when timeout is set to zero. In this case the port is always ready if the data mode is selected.