1. Control System Applications (2)
Programming Logic Controllers
PLCs
Lect. 3
Dr. Tarek Ahmed Mahmoud

2. Outlines Principles of PLC Operation (cont.) TSX NANO PLC
PLC System Components (lect.2 √)
PLC Programming
PLC Mechanical Design
TSX NANO PLC
Available Configurations
Extendable and Non-extendable TSX NANO PLCs
I/O addressing
Programming of TSX NANO PLCs

3. Programming PLCs The programming Device 1- Handheld programming device
2- Desktop consoles
3- Personal computers
The program can be stored on the hard disk or a CD and copies can be easily made.

4. International Electrotechnical Commission Stander IEC 61131-3.
Programming PLCs
The programming Languages
International Electrotechnical Commission Stander IEC
1- Ladder diagram (LAD)
2- Instruction list (IL).
3- Function block diagram (FBD)
4- Structured text (ST)
5- Sequential function charts (SFC)

5. Programming PLCs Programming Software Siemens has SIMATIC STEP 7
Mitsubishi has MELSOFT
PL7-07 for TSX NANO PLC

6. PLC Mechanical Design 1- single box type (small PLCs)
- 10 I/O (6 inputs + 4 outputs)
- 14 I/O (8 inputs + 6 outputs)
- 16 I/O (9 inputs + 7 outputs)
- 20 I/O (12 inputs + 8 outputs)
- 24 I/O (14 inputs + 10 outputs)
TSX Nano PLC
A single box type
2- Modular/rack type
(all sizes of PLCs)
I/O modules are available
in 8, 16, or 32 I/O per module
SIMATIC S7-300
A modular type

7. TSX NANO PLC

8. TSX Nano PLCs
Available Configurations

9. TSX NANO PLCs Base Non-extendable PLCs O I U N T P P U T S S Main
Main Program O U T P S
Base

10. TSX NANO PLC Extendable PLCs O I U N T P P U T S S Base+ I/P extension
Main Program I N P U T S O U T P S
Base+ I/P extension

11. Base+3 pears +I/O extension
TSX NANO PLC s
Extendable PLCs
Base+3 pears +I/O extension

12. TSX NANO PLC s I/O addressing % Examples
I or Q
0 or 1 • i
I = input
Q = output
0 = base or peer
1 = I/O extension
Input or output number
Examples
%I0.3 : Input, I/O point n°3 on the base PLC
%Q1.6 : Output, I/O point n°6 on PLC used as I/O extension

13. TSX NANO PLC s
I/O addressing

14. Programming of TSX NANO PLCs
Programming Software
PL (Ladder or Instruction List languages).
Programming Terminals
FTX 117 terminal
(Instruction List)
FTX 417
(Ladder or Instruction List).

15. Programming of TSX NANO PLCs
Reversibility of PL707 software
The ability of the PL7-07 to convert TSX Nano application programs from the Ladder programming language to the List language and back again.
Program is written by (LD)
Program is written by IL

16. Programming of TSX NANO PLCs
Instruction List
Series of instructions (up to 1000 instructions) of various types.
Each instruction (program line) has
Number
Instruction code
Operand
LD %I0.1
OR %M10

17. 00 LD %I0.0 01 ST %Q0.0 Switch = I0.0 Motor coil =Q0.0 Switch time

18. Instruction List
Types of Instructions

19. Programming of TSX NANO PLCs
Ladder Diagram
Ladder diagrams are similar to relay logic diagrams used to represent relay control circuits.
Ladder diagram
Wiring diagram

20. Ladder Diagram Language
- A program written in Ladder is composed of rungs
- Each rung includes set of specific graphical instructions drawn between the two vertical outer bars.
the inputs/outputs of the PLC
the functions of the PLC (timers, ounters...),
the math and logic operations
the comparison operators and other numerical operations
the internal variables in the PLC

21. Ladder diagram language
%Q0.0
Ladder diagram language

22. 00 LD %I0.0 01 ST %Q0.0 Switch = I0.0 Motor coil =Q0.0
Instruction List L1 L2
%I0.0
%Q0.0
Ladder
Diagram