• 2021-06-01

5. TWIDO series This series was discontinued almost ten years ago, so it is rarely seen. It was also the most popular in the OEM industry, and there was also a version with an Ethernet port. In the OEM market of that era, it was definitely a highlight, mainly with Siemens 200 Mitsubishi 2n and other grades, occasionally you may have seen it on old equipment. Use Twido Soft TwidoSuite two software....

• 2021-05-31

3. M series (Modicon will also be printed on the box) This series mainly includes M258, M251, M241, M238, M218 LMC058, LMC078, programming software SoMachine, of which LMC058 and LMC078 support motion control. It is a programming software based on the CoDeSyS platform developed by Schneider itself, which is mainly used in the OEM industry. This series was launched relatively late, about 10 years o...

• 2021-05-28

No PLC has ever been as chaotic as Schneider . The software alone is messy and messy. It is about to gather the Eight-Power Allied Forces. It makes the person who has just contacted Zhang Er monk confused, and it also brings extremes to the maintenance personnel of the factory. Great difficulty. In fact, this is determined by his special history. Schneider is a common name in Germany, just like ou...

• 2021-05-27

On September 4, according to Hong Kong’s Oriental Daily News, mainland companies were repeatedly attacked. After an anonymous analysis of Tianhe Chemical (01619) issued a short-selling report, casing manufacturer Shenguan Holdings (00829) was also attacked by research firm Emerson Analytics. During the raid, six major doubts were raised on the accounts of Shenguan Holdings, claiming that Shenguan'...

• 2021-05-26

6. From the scale of application objects: PLC is generally used in small automatic control places, such as the control of equipment or the control and interlocking of a small amount of analog quantity, while the large-scale applications are generally DCS. Of course, this concept is not accurate, but it is very intuitive. We are used to calling a system larger than 600 points a DCS, and a scale sma...

• 2021-05-25

3. From the database: DCS generally provides a unified database. In other words, once a piece of data exists in the database in the DCS system, it can be used in any situation. The following references, such as in the configuration software, in the monitoring software, in the trend chart, in the report... and the database of the PLC system is usually not unified. Configuration software, monitoring...

• 2021-05-24

Up to now, there is no strict boundary between DCS and PLC. In the eyes of most people, the large system is DCS, and the small system is called PLC. Of course, it's not impossible to say that, but it's not right. Now let's re-establish this concept. 1. From the perspective of development: DCS evolved from the traditional dashboard monitoring system. Therefore, DCS is inherently more focused on the...

• 2021-05-21

PLC (Programmable Logic Controller) has been invented in 1968, after more than 40 years of development, it is already a very mature controller. According to the estimates of research institutions, more than 70% of PLC applications are below 128 points and are purely digital I/O, and engineers only need to use digital I/O, a small amount of analog I/O, and simple programming skills. 80% of industri...