Chapter 6: Configuration Using Web ManagerXPress DR+ User Guide 53Pack ControlEnable Packing Select to enable packing on the XPress DR+. Disabled bydefault.Two firmware-selectable packing algorithms define how andwhen packets are sent to the network.The standard algorithm is optimized for applications in whichthe unit is used in a local environment, allowing for very smalldelays for single characters, while keeping the packet countlow.The alternate packing algorithm minimizes the packet counton the network and is especially useful in applications in arouted Wide Area Network (WAN). Adjusting parameters inthis mode can economize the network data stream.Idle Gap Time Select the maximum time for inactivity. The default time is12 milliseconds.Match 2 Byte Sequence Use to indicate the end of a series of data to be sent as onegroup. The sequence must occur sequentially to indicate endof the data collection to the XPress DR+. The default setting isNo.Match Bytes Use to indicate the end of a series of data to be sent as onegroup. Set this value to 00 if specific functions are not needed.Send Frame Only After the detection of the byte sequence, indicates whether tosend the data frame or the entire buffer. Select Yes to sendonly the data frame. The default setting is No.Send Trailing Bytes Select the number of bytes to send after the end-of-sequencecharacters. The default setting is None.Flush Input Buffer (Serial to Network)With Active Connect Select Yes to clear the input buffer with a connection that isinitiated from the device to the network. The default setting isNo.With Passive Connect Select Yes to clear the input buffer with a connection initiatedfrom the network to the device. The default setting is No.At Time of Disconnect Select Yes to clear the input buffer when the networkconnection to or from the device is disconnected. The defaultsetting is No.Flush Output Buffer (Network to Serial)With Active Connect Select Yes to clear the output buffer with a connection that isinitiated from the device to the network. The default setting isNo.With Passive Connect Select Yes to clear the output buffer with a connection initiatedfrom the network to the device. The default setting is No.At Time of Disconnect Select Yes to clear the output buffer when the networkconnection to or from the device is disconnected. The defaultsetting is No.3. When finished, click the OK button.4. To save and reboot, click Apply Settings on the main menu.
