Omron C500-ASC04, Руководство по эксплуатации, Страница: 143 / 154

Appendix G BASIC Commands, Statements, and Functions
136
Item Page Function Statement Command Description
ERL/ERR Returns the error code and the line number where
the error has occurred Spec 60
ERROR Simulates an error and allows error codes to be
defined Gen 37
FIX Returns the integer part of a number Arith 55
FOR...TO...
STEP
~
NEXT
Repeats a FOR to NEXT loop a specified number of
times Gen 37
FRE Returns the range of available memory Spec 60
GOSUB
~
RETURN
Calls and executes the subroutine and returns to
the original program line with a “RETURN”
statement Gen 38
GOTO Branches to a specified line number Gen 38
HEX$ Returns a string representing the hexadecimal value
of the decimal argument Char 56
IF...THEN...
ELSE...GOTO
ELSE Selects the statement to be executed or branch
destination as the result of an expression Gen 38
INKEY$ Returns a character read from the keyboard Spec 60
INPUT Reads key input and assigns it to the specified
variable Gen 39
INPUT$ Returns a character string read from the keyboard
and assigns it to the specified variable Spec 60
INSTR Searches for the first occurrence of a character
string and returns its position Char 56
INT Shortens an expression to a whole number Arith 55
KEY
ON/OFF/STOP Controls initiation, cancellation, and halting of key
input interrupt Gen 39
LEFT$ Returns a character string of the specified number
of characters, beginning at the left of the string Char 57
LEN Returns the total number of characters in a
specified character string Char 57
LET Assigns the result of the expression to the variable Gen 40
LINE INPUT Reads one line of input from the keyboard and
assigns it to a character string variable Gen 40
LIST/LLIST Displays or prints a program Comm 29
LOAD Loads the program from the EEPROM or from a
port Comm 29
LOC Returns the number of characters in the input queue
waiting to be read Spec 61
LOG Returns the natural logarithm Arith 55
MID$ Returns the specified number of characters starting
from the specified character position Gen Char 41
MON Sets the terminal to monitor mode Comm 30
MSET Sets the address boundary for an assembly
program Comm 30
NEW Clears the program and all currently defined
variables Comm 31
OCT$ Returns a string which represents the octal value of
the decimal argument Char 57
ON COM
GOSUB Defines the branch destination of a subroutine
invoked by an interrupt from a communication port Gen 41
ON ERROR
GOTO Causes branching to the specified line in the event
of an error Gen 42
ON GOSUB
GOTO Causes branching to the specified line when
“expression” is “true” Gen 42