Rockwell Automation 1758-RTU202 DataSite Software User Manual FRN 1.2 - Manual (Page 23)

Publication 1758-UM002D-EN-P - October 2010
DataSite Configuration Settings Utility (DS Settings) 23
This table shows the options and/or value range available for each
parameter.
3. To save the settings and close the Serial Ports Settings dialog box, click
OK.
To close the dialog box without saving the settings, click Cancel.
4. Click Download.
The new settings are applied to the DataSite controller.
The following sections provide more information on some of the parameters
for the serial port.
Protocol
When customizing the communication protocol, it is recommended that you
set the protocol as "None". You can then use flags in DataSite Workbench to
program the customized communication protocol. The flags corresponding to
each serial port are shown in the following table:
Serial port parameters
Parameter Parameter Options or Value Range
COM COM1, COM2
Station 1…247
Protocol Modbus RTU, Modbus ASC, DS Workbench (only for
COM2), None
Master/Slave state Master, Slave
Duplex Full, Half
Baud rate 2400, 4800, 9600, 14400, 19200, 38400, 56000, 57600
Parity Even, Odd, None
Data bits 7, 8
Stop bits 1, 2
Port type RS232, RS485
Timeout (in units of 10 ms) 1…1000
Delay time (in units of 10 ms) 0…300
Flags in DataSite Workbench for serial ports
Flag Description
US1_RX US1 receiving task for US1 customized protocol
US2_RX US2 receiving task for US2 customized protocol