Comtrol DM ATS-XPe - Manual (Page 29)

PC104 RocketPort Option 29
Configuring the RocketPort Serial Ports
5. If you selected RS-485 as the
communications mode,
highlight the port, select
Properties and then the RS-485
tab.
a. Check the Check the RS-
485 Port Properties - RTS
Toggle RTS Low box to
toggle the RTS output
signal low during data
transmission. If this box is
not checked, RTS is
toggled high (asserted)
during data transmission.
b. Check the RS-485 Port
Properties - Override and
lock to RTS toggle mode box
to lock the port in RTS
toggle mode, then set the
mode (low or high) as
desired. If this box is not
checked, the RTS output signal is ignored.
c. Select Ok to make the changes to the selected port.
6. If you want to set the verbose
event log or change the scan
rate, select the
Options tab.
a. Check Verbose Event Log if
you want more
information logged in to
the Event Viewer when
the driver loads.
b. Use the Scan Rate drop list
to select a driver servicing
rate.
c. Check Enable RS-485
options for all devices if
external RS-232 to RS-485
converters are connected
to the ports.
7. Select Ok to close the Setup
window and select Yes to add
the program group.
8. Close the Device Manager and select Ok to close the System Properties page.
9. Reboot if requested by the system.