Mobile Wine Bottling Truck uses Unitronics Vision1210™ & Vision130™ PLC and integrated HMI for complete control
Marathon Bottling and Automation LLC is a mobile wine bottling and custom automation OEM that has been using Unitronics PLCs for over 6 years and have now automated their new mobile wine bottling operation. In conjunction with using Unitronics PLCs on their custom automation projects, they have begun networking Unitronics Vision130™ PLC to control local functions on the truck, and the Vision1210™ for the entire system control and data collection. This mobile operation connects to a winery’s tank, pumps the wine into the equipment on the truck and nitrogen sparges, fills, vacuum corks, and labels all the bottles at 50 bottles per minute. The whole bottling system consists of a rotary nitrogen bottle sparger, gravity filler, vacuum corker, a 6 head capsule spinner, and pressure sensitive and cold glue labeler with 6 conveyor controls.
In the mobile wine bottling line, there are several variable speed motors that need to work in concert with bottle backup sensors. The overall line speed needs to maximise efficiency and maintain bottle control. Various sensors are needed to verify nitrogen flow pressure, fill levels in the filler machine, label length and gap detection. The labeller requires several options to accommodate varying styles of labels – including applying two different labels on the same bottle from the same reel or from two separate reels. The spacing of the labels on the bottle must be balanced. The gap detection requires a rapid and consistent input trigger. The 1.5 msec interrupt guarantees the repeatability of the label positioning when the gap between labels is detected – it provides an immediate input response to control stepper motors. Without this, slight unacceptable variation in label placement would occur. The automated capsule placing process over the corked bottles requires simple I/O control. “Multiple Options on Unitronics hardware side gave me so many choices to solve the project while keeping costs low,” said Dan Murphy, owner of Marathon Bottling and Automation. “Very rarely do I have a project requirement that is not covered by one of the basic options. When it isn’t part of a snap in module, certainly it is covered by the expansion module lineup.”
In order to get this system running, they required RS485 for control of variable speed AC motor drives along with analogue inputs for temperature measurements of incoming water during the sanitation process. Analogue inputs were also used to monitor incoming nitrogen gas pressure. Various and multiple I/O were needed for general sensors and pneumatic valve actuators. High-speed outputs were needed for stepper-motors along with high-speed inputs for rapid sensor detection. Accurate label placement with even spacing between front and back labels was also a necessity.
“After using/programming several other brands of PLCs, Unitronics software is by far the most intuitive and easily understood while providing significant functionality and quality,” said Murphy. “The time it takes to configure and implement features and functions in other PLC brands often isn’t even required in Unitronics due to the ease of use. Completely new features to me are often covered well in the example code. After copy/paste into my code, they often work the first time.”
“By providing built-in features of RS485, analogue inputs and general I/O along with multiple PLC to PLC communication options, Unitronics has always stepped up to the challenges,” continued Murphy. “Due to the seamless integration of all these options, the programming challenges are kept to the processes at hand instead of configuration issues, handshake issues, communication issues, etc. that other PLCs require.”