System Messages - Numerical List eV+Language Reference Guide, v2.x, 18319-000 Rev A Page 667 Code Message Text -404 *Illegal array index* -405 *Illegal digital signal* -406 *Undefined program or variable name* -407 *Invalid argument* -408 *Program argument mismatch* -409 *Arithmetic overflow* -410 *Negative square root* -411 *Not enough storage area* -412 *Branch to undefined label* Step nnn -413 *Not enough program stack space* -414 *Can't mix MC & program instructions* -416 *String variable overflow* -417 *String too short* -418 *Illegal memory reference* -419 *Illegal when command program active* -420 *Undefined value in this context* -421 *Program not on top of stack* -422 *Function already enabled* -423 *Illegal operation* -424 *Unknown keyword*