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 N. For installation in safe (= non-hazardous) area.

CI920AN Communication Interface V 2.1 (CIPBA), for Fieldbus

protocol PROFIBUS DP-V1 (IEC 61158). Use only CI920AN with the

same firmware for redundancy for PROFIBUS DP-V1 (observe

Release Notes).