The hardware of the BlueLine control system platform is categorized into three distinct section, based on deployment inside a given architecture. These sections are as follows:

• Local bus hardware, which are:
  
  - installed in a local bus rack type RC01
  - actively communicating on the BlueLine I/O bus system
  - any of the following sub-types:
  

  -> analog process input / output modules (AI01, AI03, AI04, AO01, AO02)
  -> discrete process input / output modules (BI01, BI02, BO01, BO02)
  -> controller modules (CP01)
  -> utility modules (TD01, BE01, IA01, BE02)
  -> communications modules (SI01, DH01, DH02)
  
  

• Intraplant bus hardware, which is capable to communicate with a legacy ABB plant bus type P42.
  

  -> intraplant bus gateway module (IPBGW)
  
  
  

• Stand-alone devices, which are special purpose boards for very specific tasks
  

  -> Operation data counter (APODC)