Settings For Numeral Settings - Omron NT20S-ST121B-EV3 User Manual

Numeral Setting
4-8-6

Settings for Numeral Settings

Settings
162
When an incrementing/decrementing (+, –) key is touched, the numeral at
the corresponding digit is incremented or decremented by one. Whenever
a plus or minus key is touched, the host is notified of the changed value.
There is no need to press the return key as is the case when using the nu-
meric key type of numeral setting.
Thumbwheel numeral setting
1 2 3 4
Press
2 2 3 4
Numerical value
incremented by one
Numerical values cannot be set in thumbwheel type numeral setting fields
by using numeric keys.
• Changing the Sign
In settings with a sign display, touching the incrementing/decrementing (+,
–) keys at the digit where the sign is displayed will change plus to minus
and minus to plus.
• Upper/Lower Limit Check
When using Ver.2 and later versions of the direct connection function, an
upper/lower limit check is executed when the incrementing/decrementing
(+, –) keys are pressed. If the input numerical value is outside the valid
range, the data in the numeral memory table before the key was pressed
is redisplayed and the host is not notified.
However, with thumbwheel type numeral setting, if the situation is such that
with an upper limit of 1n..n, and a lower limit of 0m..m (where n and m are
the values of each digit), n..n < m..m, it is not possible to carry digits up-
ward or downward.
Example:
When the upper limit value is 1200 and the lower limit value is 201, if the
initial value has three digits the value can be changed within the range 201
to 999, and if the initial value has four digits it can only be changed within
the range 1000 to 1200.
This is because if an attempt is made to change the leftmost digit from 0 to
1, or from 1 to 0, an upper/lower limit value check is always performed.
In order to avoid this, either set the values so that n..n ≤ m..m, or create
another touch switch and write values to the host when digits are carried
up or down.
The following settings are made for numeral settings during their creation with
the Support Tool. Note that restrictions apply to several of the settings made
for thumbwheel type numeral settings.
• Referenced Numeral Memory Table Entry
Set the number of the numeral memory table entry used to record the nu-
merical value input using the numeral setting function.
• Number of Digits in the Input Numerical Value
Numeral
memory table
1 2 3 4
Host
2 2 3 4
Section 4-8