The remote S900 I/O system can be installed directly in zone 1 and zone 2 hazardous areas. S900 I/O communicates with the control system level using the PROFIBUS 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 features include:
Remote I/O system for hazardous areas
Redundancy for maximum availability
Hot-swap capability of all components during operation
Extended diagnostic functions to reduce maintenance efforts
S900 is a remote I/O system for mounting directly in the field and hazardous areas. Due to its little space requirements, the robust design and its environmentally ruggedized case, the cost-saving I/O system S900 is the best solution for use on site, especially in hazardous areas such as Zone 1 or Zone 2. ABB S900 provides all input and output modules needed for intrinsically safe field signal connection. The field signals are amplified in every S900 functional module, electrically isolated, and then output via an internal serial bus.
Analog Input (4 channels)
S900-AI910N; S900-AI910B; S900-AI910S
Transmitter power supply,
S900-AI930N; S900-AI930B; S900-AI930S
Passive Analog Input, HART
S900-AI931N; S900-AI931B; S900-AI931S
Analog Output (4 channels)
S900-AO910N; S900-AO910B; S900-AO910S
Analog output, isolated
S900-AO920N; S900-AO920B; S900-AO920S
Analog output HART
S900-AO930N; S900-AO930B; S900-AO930S
Digital Input/Output
S900-DO910N; S900-DO910B; S900-DO910S
Digital Input or Output
S900-DX910N S900-DX910B S900-DX910S
Relay module for digital signals
S900-DO930N
Temperature (4 channels)
isolated inputs channel by channel
S900-AI950N S900-AI950B S900-AI950S
Frequency Input (2 channels)
input for dry contact or NAMUR initiator
S900-DP910N S900-DP910B S900-DP910S
Communication Modules
Communication Interface for PROFIBUS DP-V1
S900-CI920N S900-CI920B S900-CI920S
Intrinsically safe PROFIBUS-DP connector standard connector
S900-BP910S S900-BP910S