The Yokogawa EB401-10 ER Bus Interface Master Module is a communication module designed to connect Yokogawa devices to a network called the ER Bus.

Function:

• Acts as a master device on the ER Bus network. Master devices initiate communication and control data flow on the bus.
• Enables communication between Yokogawa Local Node Units (LNUs) or Field Control Units (FCUs) and Remote Node Units (RNUs) on the ER Bus. LNUs and FCUs typically reside within control cabinets, while RNUs are often located remotely in the field.

Applications:

• Used in Yokogawa’s automation systems to establish communication between various control devices spread across a facility.
• Might be employed in applications like:
  • Chemical processing plants
  • Oil and gas refineries
  • Power generation facilities
  • Manufacturing plants