Enabling/Disabling Pt Operations; Enabling And Disabling The Operation Of The Pt - Omron NT631 Series Reference Manual

Enabling/Disabling PT Operations

3-12 Enabling/Disabling PT Operations

3-12-1 Enabling and Disabling the Operation of the PT

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For the following functions of the PT, operations can be enabled or disabled by
instructions from the host.
• Opening a window (with PT status control bits)
• Inputting numeric values and character strings (with PT status control bits or
interlock bits)
• Switching the screen (with the PT status control bits)
• Operating touch switches (with interlock bits)
The procedure for enabling and disabling operation at the PT by instructions
from the host is described below.
Operation at the PT can be enabled or disabled by the procedure shown below.
• By operation at the PT status control area
• By operation of interlock bits
S When window opening has been disabled with a PT status control bit, all kinds
Reference:
of window opening operations at the PT, such as operations which use a touch
switch or screen property setting, are not possible. Note that window close op-
erations are still possible.
S When the input of numeric values and character strings has been disabled with
a PT status control bit, all kinds of numeric value and character string change
operations at the PT, such as numeric value input (numeric key type input field,
thumbwheel type input field), character string input, and copying memory
tables using a touch switch, are not possible. Note that operations to change
numeric values/character strings at the PT status control area by an instruction
from the host (memory table copying and screen switching by operation at the
PT status control area, changing the contents of allocated words, etc.) are still
possible.
S When interlock bits are being used to control numeral inputs and character
string, the input fields can be enabled/disabled independently. Regardless of
the status of the interlock bits, it is always possible to use bits in the PT status
control area to make changes from the host such as copying memory tables or
changing the contents of allocated words.
S When screen switching is disabled with the bit in the PT status control area, all
kinds of screen switching operations at the PT, such as screen switching using
a touch switch and by the alarm list/history function, are not possible. Note that
the display of the System Menu using the touch panel and screen switching by
an instruction from the host using the PT status control area are still possible.
S When the operation of touch switches is being controlled with interlock bits, the
touch switches can be enabled/disabled independently regardless of each
touch switch's function.
S It is possible to disable the input and change operation using the System Menu
and the display of the System Menu by setting in the System Installer mode.
(Refer to the Setup Manual .)
Section 3-12
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