Control of industrial ventilation and air conditioning system with Unipi Axon PLCs

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A Chinese provider of automation solutions is using Unipi controllers for control of air conditioning systems in a demanding industrial environment.

Sinneo is a Chinese developer and provider of software and hardware for industrial automation. The company offers automation solutions for a wide range of fields, from automotive to pharmaceutics. One of Sinneo’s projects is a system of automatic air conditioning and ventilation control based on Unipi Axon controllers. The project is installed in a metal processing factory in Suzhou. 

The project consists of two Axon S205 controllers (recently replaced on the Unipi e-shop by the Patron S207 model) installed each in one workshop. The PLCs are monitoring air temperature and humidity via a set of sensors and switch air handling units and dehumidifiers accordingly via relay outputs. The controllers also act as gateways, providing Modbus connection between external I/O modules and various machinery in workshops. The Mervis system, the officially supported SW platform for Unipi products, is used as a software solution. 

Further info

Photos and screenshots

S205 controller in a distribution box
Control logic of the project created in Mervis IDE

User HMI panel

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