Remote Processing BASIC for the CX-10 Modbus - Manual (Page 84)

BASIC PROGRAMMING GUIDE
C-3
I-STACK
There is not enough internal stack space to evaluate an expression. Usually this is caused by an excessive number
of parentheses.
MEMORY ALLOCATION
Accessing a string that is outside the defined string limits or assign MTOP a value that does not contain any RAM.
NO DATA
A READ instruction does not have valid associated DATA instruction. NO DATA - IN LINE XXX error message
displays a line number where it expected to find the data.