SLC500 item naming

$

Purely optional.

X

Identifies the file type.

The following table summarizes the valid file types, the default file number for each type, and the fields allowed (if any).

file

Identifies the file number.

• File numbers must be 0 - 255 decimal.

• File 0 must be Output.

• File 1 must be Input.

• File 2 must be Status.

• All other file numbers, 9 - 255 decimal, are open to all file types.

element

Identifies the element number within a file.

• For Input and Output files it must be between 0 and 30 decimal.

• For all other file types, the element number must be 0 - 255 decimal.

.field

Valid only for Counter, Timer, and Control files.

See the following table.

/bit

Valid for all file types except ASCII String and Floating Point.

• For Input and Output files it must be 0 - 17 octal

• For all other file types it must be 0 - 15 decimal.