The article presents trends in development of modern structures for control of packaging machines. A system for automation of the product packaging system has been worked out, consisting of the automation scheme and the control algorithm. An application has been designed that realizes the described process for a logical controller. The facility studied was a packaging line for small collective packs of agricultural products. The modification consisted in introduction of optical sensors sending input signals to a PLC controller designed according to ladder diagram (LD). On the basis of the data from ISHIDA scales, the system selects the relevant control algorithm. The solution presented meets the requirements for packaging lines consisting in the possibility of internal integration and later modification.

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