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Except for the SHIFT key on the upper right, the gray keys are used to input in-
structions and designate data area prefixes when inputting or changing a pro-
gram. The SHIFT key is similar to the shift key of a typewriter, and is used to alter
the function of the next key pressed. (It is not necessary to hold the SHIFT key
down; just press it once and then press the key to be used with it.)
The gray keys other than the SHIFT key have either the mnemonic name of the
instruction or the abbreviation of the data area written on them. The functions of
these keys are described below.
Pressed before the function code when inputting an instruction
via its function code.
Pressed to enter SFT (the Shift Register instruction).
Input either after a function code to designate the differentiated
form of an instruction or after a ladder instruction to designate
an inverse condition.
Pressed to enter AND (the AND instruction) or used with NOT
to enter AND NOT.
Pressed to enter OR (the OR instruction) or used with NOT to
enter OR NOT.
Pressed to enter CNT (the Counter instruction) or to designate
a TC number that has already been defined as a counter.
Pressed to enter LD (the Load instruction) or used with NOT to
enter LD NOT. Also pressed to indicate an input bit.
Pressed to enter OUT (the Output instruction) or used with
NOT to enter OUT NOT. Also pressed to indicate an output bit.
Pressed to enter TIM (the Timer instruction) or to designate a
TC number that has already been defined as a timer.
Pressed before designating an address in the TR area.
Pressed before designating an address in the LR area.
Pressed before designating an address in the HR area.
Pressed before designating an address in the AR area.
Pressed before designating an address in the DM area.
Pressed before designating an indirect DM address.
Pressed before designating a word address.
Pressed before designating an operand as a constant.
Pressed before designating a bit address.
Pressed before function codes for block programming instruc-
tions, i.e., those placed between pointed parentheses <>.
Gray: Instruction and Data
Area Keys
The Programming Console Section 4-5