S900 is a remote I/O family designed for applications with rated hazardous areas according to ATEX. The I/O system can be safely located directly in ATEX Zone 1 and 2, which can save immense wiring costs and make the need for barriers obsolete. It also makes life easy in the production phase, as maintenance of the I/O is as easy as in non-rated areas.
S900 I/O incorporates complete redundant networking capability, including redundancy in power supply, communication interface, and PROFIBUS DP connection. Main areas of application are in the chemical industry, the pharmaceutical industry, and the oil and gas industry. Throughout its proven track record and wide temperature range and coating, the S900 I/O has been used in many areas where durable and long-standing equipment is needed. Extended diagnostic functions and the use of HART®-compliant field devices in the fieldbus system reduce the maintenance effort and, therefore, lead to savings throughout the service life of the plant.
The S900 I/O family is ideal for use in Process Control Systems and has a proven track record with all of ABB's systems, like:
• System 800xA • Advant Master
• AC 870P / Melody / Symphony Plus
• Freelance and many more.
Three different versions of S900 are available, tailored to meet the needs of customers. Nevertheless, a uniform planning and engineering philosophy can be used both for the assembly of the certified S900 I/O in the various hazardous zones and for signaling.
The following S900 series are available:
• S series for applications in Zone 1 hazardous areas
• B series for applications in Zone 2 hazardous areas
• N series for applications in non-hazardous areas
| Analog input modules AI910S,B,N* | Analog output modules AO910S,B,N* |
| Analog input modules AI930S,B,N* | Analog output modules AO920S,B,N* |
| Analog input modules AI931S,B,N* | Analog output modules AO930S,B,N* |
| Analog input modules AI950S,B,N* | Digital I/O modules DX910S,B,N* |
| Pulse input modules DP910S,B,N* | Digital output module DO930N |