Wesley BC-620-4CA - Manual (Page 104)

100 Curtis 1234/36/38 Manual,
OS
11
7 — VCL
The operating system also provides the capability to create OEM-defined
custom faults using VCL. Just as with system faults, the VCL fault codes are
flashed on the controller Status LEDs and fault text is displayed on the 1311
System Faults and Fault History menus. Optionally, the VCL can assign fault
actions to occur automatically when the associated fault is set. Sixteen VCL
faults are available, stored in the VCL variables UserFault1 and UserFault2.
The UserFault1,2 variables are Read/Write (R/W) and the 16 faults are stored
in the lower byte of each variable like this:
UserFaultl
*
Bit0 = VCLfault1 (Code 51)
* Bit1 = VCLfault2 (Code 52)
* Bit2 = VCLfault3 (Code 53)
* Bit3 = VCLfault4 (Code 54)
* Bit4 = VCLfault5 (Code 55)
* Bit5 = VCLfault6 (Code 56)
* Bit6 = VCLfault7 (Code 57)
* Bit7 = VCLfault8 (Code 58)
UserFault2
*
Bit0 = VCLfault9 (Code 59)
* Bit1 = VCLfault10 (Code 61)
* Bit2 = VCLfault11 (Code 62)
* Bit3 = VCLfault12 (Code 63)
* Bit4 = VCLfault13 (Code 64)
* Bit5 = VCLfault14 (Code 65)
* Bit6 = VCLfault15 (Code 66)
* Bit7 = VCLfault16 (Code 67)
The “Code” numbers result in the flashing of the controller status LEDs that
help identify the fault without use of a 1311. Setting the fault in VCL is done
by setting the associated fault bit in the UserFault1 and 2 variables. Clearing
the fault must also be handled by VCL and is done by clearing the associated
fault bit. For example:
if (BDI-Percentage < 10)
{
UserFault1.2 = ON ;Set VCL Fault bit
}
else
{
UserFault1.2 = OFF ;Clear VCL Fault bit
}
This VCL will check to see if the Battery Discharge Indicator is less than 10%.
If it is, UserFault1 Bit1 (Code 52) is set. If the BDI is not less than 10%, the
fault is cleared. Using just the VCL above in a program will only result in the
flashing of a code 52 on controller status LEDs and no fault actions will result
nor will the 1311 display any text about the fault.