Omron SYSMAC C200H-ASC02, Руководство по эксплуатации

Страница: 64 / 171

54
The following two tables illustrate peripheral device output levels during ex-
ecution of the OPEN statement.
Device When Opened During Operation
RTS DTR RTS DTR
TERM LOW HIGH HIGH No Change
SCRN LOW LOW HIGH No Change
KEYB LOW HIGH HIGH No Change
COMU LOW HIGH HIGH No Change
LPRT LOW LOW HIGH No Change
Port When Closed
RTS DTR
1 LOW HIGH
2 LOW LOW
Remarks:
The default selection for the ports is as follows:
port 1: Terminal device
port 2: Printer
The following table presents the output control codes for the terminal, printer,
and COMU device.
SCRN
TERM Open Clears the screen buffer when code &H0C (CLR) is output..The
column position is set to 0 (i.e., the leftmost position) when
code &H0A (LF), &H0D (CR), &H0B (HOME), or &H08 (BS) is
output.
The cursor is moved as specified on the screen when code
&H08 (BS), &H1C (->), or &H1D (<-) is output.
Codes &H00 to &H09 and &H0E to &H1B are ignored (not
output).
Closed Nothing is executed.
LPRT Open Sets the column position to 0 (i.e., the leftmost position) when
code &H0A, &H0D, &H0B, or &H0C is output.
Characters exceeding 80th character are output with code
&H0A (LF) appended.
Closed If characters (80 characters or less) remain in the buffer, they
are output along with &H0A (LF).
COMU Open If characters are input to the buffer, they are output.
Closed If characters remain in the buffer, they are output.
4-2-5 Arithmetic Operation Functions
ABS Function
Purpose: To return the absolute value of the numeric expression specified
by the argument
Format: ABS(<x>)
Example: A = ABS (-1.5)
ACOS Function
Purpose: To return the arc cosine of the numeric expression given by the
argument
Format: ACOS(<x>)
<x> is a number in the range of -1 to 1.
BASIC Language
Section 4-2