Module 3 Numerical Displays and Bar Graph.pdf

happy reading

1. NUMERICAL DATA
DISPLAY

2. Numerical Data Display
•Numerical data read from PLC is displayed in real time on the MONITOUCH screen in any of
the following formats: DEC (w/o sign); DEC (w/ +.sign); DEC (w/ +-sign); HEX
(hexadecimal); OCT (octal); BIN (binary) and [Real Number (floating decimal point)].
•It is possible to display data in a different color when it exceeds or falls short of the
specified range. This setting can easily attract the operators’ attention to the situation.

3. Problem:
Traffic Light System with Pedestrian Light
CONDITIONS:
OUTPUT
STEP I START STEP II STEP III STEP IV
STEP V
= STEP I
STOP
I0.1
X0 4 SEC. 4 SEC. 4 SEC.
Y0(A) STOP
ON OFF OFF OFF ON OFF
Y1(B)
CAUTION OFF ON OFF ON OFF OFF
Y2 (C) GO
OFF OFF ON OFF OFF OFF
Y4 (DON’T
WALK) OFF ON - FLASHINGON – STEADY OFF OFF OFF
Y5 (WALK)
ON – STEADY OFF OFF ON – FLASHING
ON –
STEADY
OFF

4. BAR GRAPH

7. Water Tank Level
I/O List:
X0- Start Level
X1- Stop Level
Y0- Max Level Lamp
Y1- Min Level Lamp
Y2- Valve ON
Y3- Motor Pump ON
Problem:
1.When start level =ON, Pump= ON and level increase
2.When Level MAX, Pump =OFF, Valve ON and Level Decrease
3.When Level MIN, Valve=OFF, Pump ON and level Increase
4.When Stop Level=ON, Valve and Pump OFF, Water level will OFF