Seiberling - process engineering - automation

Software Functional Requirements

Prior to development of PLC/HMI code, Seiberling works with their clients to develop the foundation documentation which defines the users and process software requirements. This work typically progresses through the development of the following documents: 

  • Process/CIP/SIP functional requirements
  • Batch calculations definition
  • Process recipe parameters
  • CIP unit matrix charts
  • CIP circuit device sequencing
  • CIP recipe parameters
  • Definition of alarms and limits
  • Software design specification

After agreement on the technical content of these documents, the PLC and HMI programming code is developed.  After development and prior to installation at the client's job site, we thoroughly test and document PLC/HMI programming performance. The Software Test Protocols and Site Acceptance Test Documents are developed based on criteria and requirements defined in the foundation programming requirements and specifications.

We believe in providing proper documentation with the code we write, so that the control system can be maintained and understood by your plant personnel. Seiberling engineers focus on developing well structured and well thought out logic that provides the flexibility that your facility needs for today and the future.