Identifiers are text names that identify the various VTS entities such as functions, modules, states, I/O tags, and so forth. Identifiers may be up to 32 characters long, and include upper and/or lower case letters, digits, periods, pound signs, and underscores. Letters in an identifier are not case sensitive - the following are all the same identifier:
PumpFlow_1
PUMPFLOW_1
pumpflow_1
pUmPfLoW_1
Identifiers may not contain spaces, quotation marks (single or double), operators (such as + ), or delimiters. Identifiers may not be the same as reserved words (such as If ).