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Welcome to this tutorial for Mitsubishi Graphic 
Operation Terminal

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The Graphic Operation Terminal is the product 
name of

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Mitsubishi HMI's.

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Today's topic is about Numerical Display.

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The numerical display allows the data saved 
in the PLC CPU and

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other devices such as VFD's to be displayed 
as numeric values on GOT.

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Examples of data that can be displayed on 
the are motor speed through vfd,

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temperature, pressure or liquid level coming 
from process instruments,

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current, timer values or counter values.

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To add a numerical display to the screen 
editor

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click the numerical input/display icon directly

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and click on the screen editor on the desired 
location.

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When double clicked, numerical display or

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numerical input can be selected.

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By clicking on the dropdown button on the 
numerical input/display icon

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the numerical display or numerical input 
can be selected directly.

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In the Basic Settings, Device Style tab add 
the address of the device

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where the data to be displayed comes from.

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Numerical data can be monitored from data 
registers, timer values,

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timer set values, counter running values, 
counter set values,

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X input, example from thumbwheel switches,

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Y output, example outputs to seven segments 
digital displays,

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or M auxiliary relays.

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On our first example we will display the 
value of data register D11.

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Supposing we want to monitor the value that 
is transferred to D11,

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that is an example of numerical display.

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In the Data Type, we have choices from Signed 
BIN16 ,

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meaning 16 bit integers with negative and 
positive values,

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Unsigned BIN16 are positive 16 bit integers,

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The same as Signed BIN32 and Unsigned BIN32.

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The only difference is the length of data 
which is 32 bits.

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BCD16 is a 16 Bit Binary Coded Decimal,

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while BCD32 is a 32 Bit Binary Coded Decimal.

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Real numbers are floating point numbers

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that have the ability to represent fractional 
portions of whole numbers.

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Decimal is denary number or base 10 number 
that uses 10 digits from 0 to 9.

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Hexadecimal is a base 16 number from 0 to 
9 and continues from A to F.

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Octal is a base 8 numbering system represented 
from 0 to 7.

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Binary is a Base 2 numbering system that 
has a value of 0 or 1.

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Real format is the same as in the Data Type 
which is a floating number.

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Selecting this option will display the numerical 
values with asterisk.

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This is useful when entering passwords.

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Set the number of digits for the numeric 
value to be displayed.

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Select this item for displaying zeros on 
the left to the numeric value.

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Format string is set if we want to include 
characters with the device values.

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Input "#" for the part where a numeric is 
displayed

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then type the alphanumeric characters and 
symbols.

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When Format String is used the Digit and 
Decimal point settings are disabled.

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The "#" signs set with the format string 
setting are replaced by a device value when 
displayed.

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Setting for Decimal Point will also be disabled 
when Signed or Unsigned Decimal is selected 
in the Format.

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If Real is selected the Decimal Point setting 
will be enabled.

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Decimal points can be adjusted

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to display the device value of integer as 
a value with decimal point.

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Shapes can be set as frames for numerical 
display.

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Now we will make a numerical display for 
counter values.

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In the Device setting select Counter and 
provide the address.

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We will be monitoring the counter value.

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Click the Display Case tab.

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Here we can add conditions

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to change the display according to the status 
of the monitored device.

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For example, when the output Y0 is activated.

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When Y0 is On, the display will blink. We 
will set to medium.

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and set the numerical to red.

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Extended Tab is for Security settings.

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This will be discussed on another tutorial 
regarding security settings.

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Trigger Tab sets conditions for displaying 
the object.

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For example we select ON, we have to set 
the Trigger Device also.

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If the trigger is satisfied,

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the input display will monitor the current 
value of the device.

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If the trigger is not satisfied, the value 
of the device will not be monitored.

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For example we enter M0 as the trigger device.

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If the Hold display is set, the display is 
hold

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even when the display condition is no longer 
satisfied.

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When the display condition is again satisfied

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the current value of the monitored device 
will be displayed.

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We will put a bit switch to increment the 
value of the counter.

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Another bit switch to reset the counter.

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Then a bit switch for the trigger device

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Since the trigger switch is OFF, the input 
display is not shown.

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When the trigger is switched On, the input 
display becomes visible.

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The value of the counter will be incremented 
everytime the switch is pressed.

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When the preset value is reached,

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the counter contact will close

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and the output Y0 will turn On.

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The numerical display will then start blinking 
and turn into red.

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That is because we have set a condition in 
the Display Case

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that when Y0 turns On, the numerical display 
will change its color

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into red and start blinking.

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Once we turn off the trigger switch

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the numerical display cannot be viewed.

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With the Hold Display, the numerical display 
is still visible

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but the value of the monitored device will 
be hold.

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When we turn off the trigger switch,

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even if the increment switch is pressed repeatedly

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the value displayed is not updated.

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Once the trigger switch is turned on,

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the numerical display will show the current 
value of the monitored device.

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That is the function of Trigger Device with 
Hold Display.

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Next we will see how to use the numerical 
display for other Data Type.

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This time we will use the data from Y output.

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This is from the seven segment display

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Practically BCD Data is very seldom used 
with HMI

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since binary numbers and real numbers are 
used for data manipulations.

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BCD Data can be used if there is existing 
BCD type devices

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that is interfaced or converted to HMI display.

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For example we select the BCD16 data type,

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we will set the device as Y20

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Click Shape to provide a frame for the numerical 
display

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and set the plate color.

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Supposing in the seven segment display we 
have a value of 125,

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this value is monitored in the numerical 
display.

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You will notice that the Y output has a value 
of 293.

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This is the equivalent value of the binary 
digits.

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For example we have a decimal value of 125.

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In BCD conversion, each of the decimal digit 
has its equivalent value.

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Decimal no. 1 is equal to 0001 in BCD.

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Decimal no. 2 is equal to 0010 in BCD.

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Decimal no. 5 is equal to 0101 in BCD.

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Now if we combine the three BCD values into 
one,

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it becomes a binary number 000100100101 which 
is equivalent to 293 in decimal.

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That is the reason why the value of Y output 
is 293 and not 125.

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Next we will make an example for Real Data 
Type numerical display.

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The Display Format will also be Real type.

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The device that we will use is D5 data register.

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This program is a conversion from analog 
to digital value.

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Data register D2 is from the input which 
is 0 to 10V converted to 0 to 4000 engineering 
units.

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this will be converted from integer to floating 
type number.

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If you notice it has decimal points in D3.

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Then that value will be divided by 40 to 
scale the 0-4000 engineering units

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will be scaled into 0 to 100°C.

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This will be the scaled value.

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As we can see we have two decimal points 
in the numerical display.

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Supposing we have an engineering value of 
2500, this will be equivalent to 62.5°C.

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That is how we apply Real number in Data 
Format and Display Format.

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The monitored value should be floating type.

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In the PLC program the integer type should 
be converted to floating type.

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If we want to add a unit, that is "°C", we 
need to put hash (#) sign,

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we need to put hash (#) sign, that is three 
# signs,decimal point, two # signs and °C 
characters.

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There we have now the °C unit for the numerical 
display.

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For example our temperature input has changed,

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For maximum of 4000 engineering units, the 
equivalent is 100°C.

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That is for basic setup of numerical display 
using the data type Real and display format 
real.

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If we use BIN format we can adjust the decimal 
point int the display format.

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This is useful in PLCs that don't have floating 
number instruction.

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Examples are FX1S and FX1N model PLCs.

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What we can do is data manipulation so that 
we can

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display the decimal points through HMI

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although we don't have floating numbers in 
the PLC program.

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Decimal point will be adjusted in the display 
format setting.

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That is all for the basic setting on using 
the numerical display.

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Watch out for more tutorials on Mitsubishi 
GOT HMI.

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Thank you.