Xylem System 5000 BASIC Manual - Manual (Page 27)

25
Basic Commands and Functions
Returns the fractional part of the given number.
var = 26.245 REM stores 0.245 in var
FRAC (number)
Used in conjunction with the SETNETWORK command, GATEWAY sets the given parameter as the
Gateway address to use for the network. A specified gateway should be given after the IP MANUAL
and NETMASK commands have been issued.
SETNETWORK GATEWAY, “192.168.0.1”
GATEWAY
Begins a for loop encompassed by FOR and NEXT with an optional STEP parameter (default STEP
is 1, negative STEPs may be used).
FOR x = 1 TO 5
PRINT x * x, “ “; REM prints “1 3 9 16 25 “
NEXT x
FOR a = 10 TO 1 STEP -2
PRINT “ “, a; REM prints “ 10 8 6 4 2”
NEXT a
FOR
Used in conjunction with the GETVALUE command, FREQUENCYX requests a new frequency
measurement to be made on the specified Digital port and stores the value in the given variable.
slot$ = “SLOT1”
GETVALUE FREQUENCY1, var REM stores a new frequency measurement of
REM digital port 1 from the daughterboard in
REM the var variable
GETVALUE FREQUENCY2 slot$, s$ REM stores a new frequency measurement of
REM digital port 2 from Slot 1 in the
REM s$ string variable
FREQUENCYX
Used to retrieve a system database value. The response is stored in the last variable provided.
Available parameters are ERRORSTR, SITEID, SCANRATE with a given Task, and TASKNAME.
ERRORSTR returns the Default Error String (default is -99.99). SITEID returns the System 5000™’s
Site ID, SCANRTE returns the Scan Rate of the given Task as a measurement of seconds, and
TASKNAME returns the calling Task’s name (if the program is run as an Input or Output) or the
Default Error String (if not run as a Task I/O).
GETDB