Process Control

photocell_mimicA Process Control System has three responsibilities. First, controlling machine operation to process the log as intended by the optimization solution. Second, processing as many logs as possible through the machine during a shift. And third, making it easy to monitor, configure, maintain and troubleshoot machine operation.

Porter RT3 Process Control Systems utilize the latest technologies in PLC’s and motion control and modern programming techniques to tightly control speed and position to ensure the log is processed as intended, resulting in accurate opening faces and maximizing recovery and value.

gap_graphPorter RT3 Process Control Systems maximize piece count by utilizing predictive gap optimization techniques and leveraging the increased performance of modern VFD’s to maximize piece count while maintaining smooth machine operation.


positioner_statusPorter RT3 Process Control Systems allow the operator and maintenance personnel to easily monitor, configure, maintain and troubleshoot machine operation by way of an intuitive, menu driven Human Machine Interface (HMI).

All components are connected and tested extensively in our CSA-US certified manufacturing facility prior to shipping, reducing potential problems during startup. The assigned Controls engineer takes the project from inception to startup ensuring continuity of knowledge and quicker realization of production targets.

Porter designs control system for log bucking, primary breakdown and curve sawing gangs and has participated in highly successful projects with all major machinery vendors.


PLC: Allen-Bradley, Modicon, Fanuc, Siemens

Motion Control: Delta Computer Systems, Allen-Bradley

Human Machine Interface: WonderWare, FactoryTalk View

HMI PC: Current Technology with large flat panel monitors, Microsoft Windows, Disk Management and Antivirus Software

Operator Consoles: Heavy gauge powder coated steel, top layout designed in collaboration with customer

Control Cabinets: Dust, oil and water tight

Encoders/Pulse Generators: Bidirectional, custom built by Porter with 5/8″ diameter stainless steel shaft and a cast steel enclosure

Documentation: Interconnection Diagrams, Wiring Schedules, Electrical Schematics and Component Layouts

Porter offers many levels of product support to ensure your continued satisfaction with our systems:

  • Free telephone technical support for the life of the system including troubleshooting your system over modem or Internet/VPN
  • After Hours Emergency support
  • Spare parts stocked at our Richmond facility