
VIU STEPUP
_________________________________________________________________________________________________________
4-2
SIG-00-07-11 SEPTEMBER 2012 (REVISED OCTOBER 2019)
Version No.: B.2
WARNING
IN VOLTAGE SENSING APPLICATIONS, WHEN THE VIU UNIT’S
VITAL INPUTS ARE USED TO MONITOR LAMP ENERGY AND
THE LAMP HAS AN OPEN FILAMENT, THE VIU WILL CONTINUE
TO REPORT THE LAMP AS LIT AS LONG AS THE SYSTEM
CONTINUES TO APPLY ENERGY TO THE LAMP.
4.2
SOFTWARE LOAD AND CONFIGURATION SEQUENCE
The VIU comes from the factory with the MEFs and default configuration files installed.
Following initial power up and successful boot up of the VIU, an application specific MCF can be
upload via the USB port located on the front panel. That procedure is described in the following
paragraph. At several points in Figure 4-2 the user is directed to upload software to the VIU
from a USB drive. Ensure that the USB drive file structure and file type locations are as
indicated below.
The file structure on the USB drive must have the following format. The VIU will look in specific
folders for each file type. Folder names and relationships are exact, file names (those listed
within the parenthesis with e.g.,) are for example only.
In the examples referred to in this section, the Archibald and Haven Railroad is placing a VIU
unit into operation at the Broadmoor bungalow located at mile marker 432.1
NOTE
The application referred to within this chapter is specific to this
example only. Other applications could or would have different
connections.
Safetran
VIU
Application
Vital MCF {VITAL MCF} (e.g., VIU_RR_LM001.mcf)
Executive
Master Executive {MSTR EXEC} (e.g., VIU01_70.MEF)
Slave Executive {SLV EXEC}(e.g., VPF01_00.MEF)
Non-Vital Core Executive {N-V EXEC}
(e.g., viu_nvmef_dev.006.4.tgz)
Configuration
Vital Configuration {VITAL CFG}
(e.g., V-4321-SafetranSystems.bin)
Non-Vital Configuration {N-V CFG}
(e.g., NV-4321-SafetranSystems.bin)
RC2 Key {RC2 KEY} (e.g., rc2key.bin)
PTC Configuration XML {PTC CFG XML}
(e.g., Broadmoor-WiuConfig.xml)
Figure 4-1 Example USE Drive File Structure