Rockwell Automation 1771-DB BASIC MODULE - Manual (Page 129)

Chapter
Expressions, Variables and Operators 9
9 -19
XBY
Use the XBY operator to retrieve or assign data to or from the external
RAM data memory of the BASIC module. The argument for the XBY
operator must be a valid integer between 0 and 65535 (0FFFFH).
The value assigned to the XBY operator must between 0 and 65535 (0 and
0FFFFH) inclusive. If not, a bad argument error occurs.
>A = XBY(0F000H)
Result: Value in external memory location 0F00H assigned to
variable A.
>XBY(4000H) = 1FH
Result: Value 1FH assigned to external memory location 4000H.
Important: Improper use of this operator may cause a malfunction of the
BASIC module.
TIME
Use the TIME operator to retrieve or assign a value to the free running
clock resident in the BASIC module. After reset, time is equal to 0.
CLOCK1 (page 11 -5) enables the free running clock. When you enable
the free running clock, the special function operator TIME increments once
every 5 milliseconds. The units of time are in seconds.
When you assign TIME a value with a LET statement (page 11 -19)
(ex:
TIME=100 ), only the integer portion of TIME is changed.
>CLOCK1 :REM ENABLE FREE RUNNING CLOCK
>CLOCK0 :REM DISABLE FREE RUNNING CLOCK–TIME NOT RESET
>PRINT TIME REM: DISPLAY TIME
READY
>RUN
3.315
>NEW
>TIME = 0 :REM SET TIME = 0
>PRINT TIME :REM DISPLAY TIME
READY
>RUN
.315 (Note: only the integer is changed)