PLC/HMI Programming & Hardware Upgrades. Custom Control Panels Design and Build. Troubleshooting industrial packaging machines (Form Fill & Seal Machines, Cartoners e.t.c ). Retrofit and system upgrades/ migration. GDA Controls Inc. is a Canadian privately owned and operated Automation Company. GDA Controls Inc. is a leading provider of the most innovative, structured and applicable solutions to customers all over the world. PLC Programmer .