The remote S900 I/O system can be installed in non-hazardous areas or directly in Zone 1 or Zone 2 hazardous area depending on the selected system variant. S900 I/O communicates with the control system level using the PROFIBUS DP standard. The I/O system can be installed directly in the field, therefore the costs for marshalling and wiring are reduced.

The system is sturdy, error-tolerant and easy to service. Integrated disconnection mechanisms allow replacement during operation, meaning that there is no need to interrupt the primary voltage in order to exchange the power supply units.

S900 I/O type B. For installation in hazardous area Zone 2. For connecting intrinsically safe field devices installed in Zone 2, Zone 1 or Zone 0.

AI950B Temperature Input (TI4-B), supporting Pt100, Pt1000and Ni100 in 2-/3-/4- technology. Thermocouples B, E, J, K, L, N, R, S, T, U, mV. Isolated inputs channel by channel.

• ATEX Certification for Zone 2
• Redundancy (Power and Communication)
• Hot Configuration in Run
  
• Hot Swap functionallity
  
• Extended Diagnostic
  
• Excellent configuration and diagnostics via FDT/DTM
  
• G3 – coating for all components
  
• Simplified maintenance with auto-diagnostics
  
• Pt 100, Pt 1000, Ni 100, 0…3kOhms in 2/3/4 wire technique
  
• Thermocouple Type B, E, J, K, L, N, R, S, T, U, mV
  
• Internal or external cold junction compensation
  
• Short and break detection
  
• Electrical isolation between input / bus and input / power
  
• Electrical isolation channel to channel
  
• 4 channels