Comtrol Modbus TCP User Guide - Manual (Page 56)

56 - Chapter 3. Embedded Configuration Pages DeviceMaster UP Modbus/TCP User Guide: 2000447 Rev. I
Saving Port Options
3.6.5. Saving Port Options
After configuring the serial/socket and protocol characteristics for the port, scroll to the bottom of the Edit
Serial Port Configuration or Edit Socket Port Configuration page to save the changes.
The following options are available.
ETX (End of
Transmission) Rx
Detect
When enabled, the DeviceMaster UP detects an ETX (end of transmission) byte
sequence that is configured as one byte or two bytes marking the end of the Ethernet
packet. The length indicates the number of ETX bytes, valid values for length are:
• none - Disables this function and the DeviceMaster UP uses the Rx Timeout
Between Packets to indicate the end of data packet.
• one byte - Scans Ethernet data for one ETX byte and when the DeviceMaster UP
finds the ETX byte, it identifies the data as an Ethernet packet.
• two bytes - Scans Ethernet data for two ETX bytes and when the DeviceMaster UP
finds the ETX bytes, it identifies the data as an Ethernet packet.
Byte 1 - Specifies the character to scan for in the first ETX byte, if the length is one byte
or two bytes. You can specify a value between 0 and 255 in decimal format.
Byte 2 - Specifies the character to scan for in the second ETX byte, if the length is two
bytes. You can specify a value between 0 and 255 in decimal format.
Saving Port Options
Reset Statistics Selecting this check box, clears the statistics counters for this port when you select Submit.
Reset Port
When you select this check box, the DeviceMaster UP resets the serial port hardware and
statistics counters for this port when you click Submit. You must reset the port after
modifying the serial port configuration options, including: baud rate, interface mode,
parity, data bits, stop bits, flow control, or DTR control.
Any socket port connections to a device or application will also be reset.
Save in Flash
When you select this check box, the DeviceMaster UP saves changes to port configuration
settings in flash memory. These settings are restored when you reboot the DeviceMaster
UP.
Undo Changes Restores modified port settings to current values.
Submit
Saves changes to port in RAM. If Save in Flash was not selected when you clicked Submit,
the changes will revert to original settings when you reboot the DeviceMaster UP.
Application TCP Connection Configuration (Serial or Socket Port) (Continued)