As all your dear colleagues are aware, today, with the advancement of science and technology, the use of computers in industry has also been reflected, so that instead of control panels and power line production devices, which were made entirely as contactor relays, and as a result, to repair any problems, first Sufficient experience and knowledge of the panel was needed, and secondly, the whole panel had to be controlled step by step through a map to determine the problem, but today a device called plc is used, and with plc, in addition to being able to monitor any defect and Displayed on the op screen without the need for a map and you can easily identify and troubleshoot device defects in the shortest possible time.

Another advantage of plc is the ability to connect them to each other and establish a network connection, so that all equipment and plc inside the production line can be controlled and examined through a central computer in the control room, which reduces the skilled force in the production line. Increases the accuracy and efficiency of equipment.

In Iran Khodro factory, since 3 years, almost all the equipments of production lines of different halls such as assembly, paint, body building, press, engine making and casting have been taken out of the old state and equipped with industrial automation and PLC system.

Therefore, the need for plc specialists has increased during this day and is also expanding.

Since in the country this technology and technical field is not taught as a specialized field in universities and colleges of the country or exists in a very limited way, therefore Iran Khodro Company can rarely hire experienced experts in this specialized field.

Therefore, the best option is to train people inside the company, which in recent years, the respected Iran Khodro Training Center has taken basic steps in this field and has set up a plc laboratory.

Dear friends and colleagues, if you have referred to the University of Tehran to buy books related to plc, you will find that the majority of books written in this field are related to the theory and concept of plc and the knowledge of the parts inside plc. Siemens plc software written in s7 family series is rarely found

Since the use of Siemens s7 series is common in Iran Khodro factory, therefore, the need for a main reference to use simatic s7 software as a guide for respected electronic experts and technicians of the company is felt more than ever in this booklet. Dear colleagues, know the concept of plc and logic and logic circuits that have been taught to be interpreted in different books, and use this collection for quick use of s7 software.

It is hoped that the efforts of this humble person for several months will be used as a reference by our esteemed colleagues and will be useful.

Abstract:

Familiarity with PLC and s7 software,

Types of blocks in s7,

Display forms in s7,

Timers,

Counters,

Comparisons,

Converters and shifters and hardware in s7