PLC programming cable purchase

The PLC programming cable is mainly used for communication between the computer and the PLC. The program can be uploaded and downloaded through the programming cable, and communicated with the human-machine interface. It can be seen that the PLC programming cable is very useful for our work and life. Therefore, for better use, you need to choose a good PLC programming cable. So how do you choose a PLC programming cable? It is recommended to consider the following aspects.

1. For your own notebook with RS232 interface, there are USB and plug-in type (wireless network card interface) on the market, the price is within 100. This saves the problem of finding the driver and driver, RS232 basically does not support Hot swap, but why do you want to hot plug, always be careful not to plug in and out at all times, even if you use the USB interface, after all, industrial control products are not cheap.

2, now the RS232 line on the market is basically 5-25 yuan, with the adapter module between 35-120 (mostly around 80), there are some special shape of the interface price is somewhat high, but more than 100 many.

Buying online is cheap and time-saving, but you should pay attention to check the cable model or match the corresponding PLC when purchasing, because there are many PLCs that are already USB interfaces.

3, can not blindly look at the price when buying, not all high prices are good goods, cheap and cost-effective. Therefore, we must first look at quality, performance, brand, after-sales service, etc. when purchasing.

4. Among the industrial control cables, the most expensive ones may be the best. But cheap is not necessarily the worst. The key is to use people's psychology. We must first look at quality, performance, then price, brand and after-sales service. Now that electronic products are cheap, cable prices over 120 are not so reasonable. Original goods are sold to businesses and wealthy people. The reason why it is expensive is that it is produced by OEM. It has to be multi-level sales through production-manufacturer-wholesale-retail-users, and the price is naturally exploited layer by layer. Then many logistics transportation, in order to become the final price. Now the industrial control industry is developing very well, and its peripheral auxiliary industry has also kept up. There are a large number of cable manufacturers in China, many of which have online direct sales, and some finished products are even cheaper than the materials I made when I am doing it.

5, for your own books with a RS232 interface, the market has USB and plug-in type (wireless network card interface), the price is within 100. This saves the problem of finding drivers and drivers, RS232 basically does not support Hot swap, but why do you want to hot plug, always be careful not to plug in and out at all times, even if you use the USB interface, after all, industrial control products are not cheap.

6, the current RS232 line on the market is basically 5-25 yuan, with the adapter module between 35-120 (mostly around 80), there are some special shape of the interface price is somewhat high, but more than 100 many.

7, under normal circumstances, you can buy online. It is cheap and saves time, but you should pay attention to check the cable model or match the corresponding PLC when purchasing, because there are many PLCs already connected to the USB interface. If you buy it in a local computer city, it is only ten or twenty. So there is no need to spend some postage. Or if there are some merchants, he won't tell you about it, mix your audiovisual and buy their products.