You need to access VXWorks by doing the following:
Terminal Program set for VT-100 emulation, ASCII, 9600, N-8-1 baud.
Use a 9 pin serial cable connected to the MAINTENANCE port on the front of the 3300 Controller (I am assuming that it is a 3300 ICP) and to a serial com port on your PC.
Reboot the controller. At this point you should be getting boot information on the screen, stuff like memory tests etc... IF you don't see anything, check the above stuff.
Wait until you see the prompt "Press <SPACE><SPACE><SPACE> to stop auto-boot AFTER countdown starts..." Depending on the software version you may get a prompt to press "any key" to stop auto-boot instead.
If you were successful in stopping the boot, you should see a "[VxWorks Boot]:" prompt.
Basic commands:
p = display the boot parameters
c = change the boot parameters
. = clear field
- = go to previous field
'enter' key will scroll to next field when changing boot parameters.
You will need to change the "inet on ethernet (e) : 192.168.1.2:ffffff00" field. What is shown is default. Remember to include the subnet field (ffffff00) when changing.
If you have an LX controller that previously had the E2T card statically set by using a debug cable, you will have to change the IP address there as well. If you were using the internal DHCP server, remember to update the static entry for the E2T card there.
Hope that helps.