CI845

Select I/O is an Ethernet networked, single channel granular I/O system for the ABB Ability™ System 800xA automation platform. Select I/O helps decouple project tasks, minimizes the impact of late changes and supports standardization of I/O cabinetry ensuring automation projects are delivered on-time and under budget. A Signal Conditioning Module (SCM) performs the necessary signal conditioning and powering of the connected field device for one I/O channel.

The CI845 Ethernet Fieldbus Communication Interface Module (FCI) is responsible for communications of S800 I/O or Select I/O to the AC 800M controllers. For redundant configurations, two CI845s are required to be installed in the TU860 or TU865 Ethernet Field Communications Interface MTUs.

System 800xA offers flexible and modular I/O solutions through fieldbus technologies, wireless I/O and hardwired I/O systems like S800 and S900. The system is now enhanced with Select I/O that allows to condition each signal coming from the field individually. Select I/O is Ethernet connected and consist of single channel granular Signal Conditioning Modules (SCM).

Features and benefits

  • Can be used as single or redundant
  • Supports both Select I/O and S800 on Ethernet
    • Supports 12 single or 12 redundant S800 I/O modules
    • Supports up to 192 Select I/O channels
  • Possible to use with single ar redundant 24V power supplies
  • Built-in power voting
  • Built-in supervision of power supply A and power supply B
  • Built-in cabinet temperature measurement
  • Built-in diagnostics
  • Soft marshalling
  • Optimized engineering
  • HART v7, HART pass-through
  • HART variables to the application (Select I/O)
  • Sequense of Events
  • Supports hot swap
  • Can be used in hazardous area
  • Mechanical locking slider which turns off power before removal
  • Mechanical keying
  • LED indicators