Magnavox W-10CR Installationsanleitung PDF herunterladen (Seite 131)

Programming Commands 115

IN I/O Function

ACTION: Returns the state’s of the specified digital I/O inputs.

PROGRAM SYNTAX: IN(bnn) - used in an expression

IN(bnn,len) - used in an expression

REMARKS: bnn specifies the I/O point terminal.

board 1 board 2 board 3 board 4

101-124 201-224 302-324 401-424

len is the number of I/O points to return (1-24).

A true (1) is returned if the state of the input is active. Otherwise, a false

(0) is returned.

IN(bnn) - used in an expression

Returns a single input state.

IN(bnn,len) - used in an expression

Returns a number corresponding to the states of multiple inputs, binary

weighting of inputs bnn to (bnn+len-1). IN(bnn,len) is equivalent to:

IN(bnn) + (2*(bnn+1) + (4*(bnn+2) + ... +(2

len-1

*(bnn+len-1)

EXAMPLES: x=IN(207)

The state of board 2 input 7 is returned to variable x.

x=IN(207,3)

The sum of the input states from board 2 inputs 7-9 is returned to x.

The value returned will be: IN(207) + (2*IN(208) + (4*IN(209).

INCHAR I/O Function

ACTION: Return the ASCII code of a character from the designated serial port.

PROGRAM SYNTAX: INCHAR(n) - used in an expression

REMARKS: The n specifies the serial port (1 or 2). Port 1 is the Host port and Port

2 is the Auxiliary port.

If no character has been received by the designated serial port a 0 is

returned. Otherwise, the ASCII code value equivalent is returned.

EXAMPLES: DO

x=INCHAR(2)

LOOP UNTIL x > 0 ‘ wait for Auxiliary port character.

A$=A$+chr$(x) ‘ add character to A$

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Magnavox W-10CR Installationsanleitung Seite 131