Rockwell Automation 57C620 AutoMax Programming Executive Version 3.8 - Manual (Page 210)

18Ć22 AutoMax Programming Executive Version 3.x
18.4.2.3 Using an Existing Coil Name
You cannot insert a sequence with the same coil name as that found
in an existing sequence. If you try to do so, the system will display an
error message indicating there is a duplicate coil.
18.4.2.4 Adding Local Booleans
All local booleans that are added must first be entered as coils in
order to be defined as locals. They must be defined as locals in this
way before they may be used as contacts. All common symbols that
are added must be defined using the Variable Configurator. If a new
common that is not already defined is added, the screen will display
an error message indicating that the symbol is not resolved.
18.4.2.5 Inserting a Sequence with Counter or Shift Register Blocks
If Counter or Shift Register blocks are installed when the UP, DOWN,
or SHIFT inputs are conducting, the count or shift will not take place.
The count or shift will take place only when the input is turned off and
back on again.
18.4.2.6 Inserting or Modifying a Sequence with an Upward Transition
Contact
If an upward transition contact references a new input in a register
not previously used by the task, and if the input is conducting, an
upward transition will be detected on the first scan after the new
sequence is installed or the existing sequence modified.
For example, you insert the following sequence where Q_IN is
defined in the configuration task for the rack, but is not used
elsewhere in the Ladder Logic task:
Q_IN
Q_OUT
]ĂUĂ[
B_OUT
]ĂăĂ[
(ăă)
If Q_IN is on when the sequence is inserted, B_OUT will turn on. If a
different bit in the word where Q_IN is defined was already used by
the task, then B_OUT will not turn on until Q_IN turns off and then on
again.