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About product and suppliers:
        Alibaba.com offers 4,554 plc software products. About 40% of these are other electrical equipment, 3% are electronic data systems, and 2% are integrated circuits. 

A wide variety of plc software options are available to you, such as paid samples. 

There are 4,546 plc software suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Thailand, and Taiwan, which supply 98%, 1%, and 1% of plc software respectively. 

Plc software products are most popular in Domestic Market, Eastern Europe, and North America. 

You can ensure product safety by selecting from certified suppliers, including 1,312 with ISO9001, 403 with Other, and 35 with ISO14001 certification.