Instruction Manual

Language Reference • Reference 203

Publication 1398-PM601A-EN-P — October 2000

WORDS

Volatile User Flag Variable

Purpose Set a user flag ON or OFF with another flag, or a constant.

Syntax Fn = ON/OFF/Fn/Bm

variable = Fn

n, m The number of the flag. n = 1, 2, 3, ..., 64. m = 1, 2, 3, …, 8

variable Variable may be a nonvolatile flag Bn, a volatile flag Fn, or a

system flag.

Remarks The changes made to Fn remain in effect as long as power is maintained. On power-up

or HRESET all Fn flags are set to OFF. If a flag needs to be maintained during a power

failure use a Bn flag. Changes made to Fn flags by one program will be seen by other

programs.

TIP: Variables can be assigned names using the ASSIGN command and then refer-

enced by those names to make the program easier to read.