S900 Remote I/O System Intrinsic safety in the field
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— S900 Remote I/O System Intrinsic safety in the field

S9 00 REMOTE I/O SYSTEM INTRINSIC SAFETY IN THE FIELD 01 Example of Field housing FH660S in stainless steel with complete certification according to "ATEX". S900 is a remote I/O family designed for application 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 cost and makes the need of barriers obsolete. It also makes life easy in production phase, as maintenance of the I/O is easy as in non-rated areas. S900 I/O incorporates complete redundant networking capability, including redundancy in power...

Control Room Area Field Area Advantages at a glance • Designed for intrinsically safe applications in hazardous areas • Integrated barrier function with hot pluggable modules and automatic slot addressing • High availability due to redundancy in the power supply as well as in communication • Minimum maintenance effort as a result of hot swap capability in rated hazardous areas, selfdiagnostics, remote engineering capabilities • Simplified project handling with pre-installed, fully certified extended safety field housings • Easy project planning and efficient engineering Customer benefits •...

The S900 building blocks The S900 interface family is based on a passive backplane suitable for assembly in control room or for field assembly in an appropriate housing, e.g. extended Safety Fieldhousing FH660S. The passive backplane contains all terminal units for field circuits, communication and power supplies. Interface modules are plugged into the backplane in up to 16 slots. The backplane has two slots for power supply units and two slots for communication interfaces to achieve a full communication and power supply redundancy. The interface modules have up to eight channels, while...

INTRINSIC SAFETY IN THE FIELD S900 REMOTE I/O SYSTEM Integration into the control system The S900 remote I/O can be configured and parameterized directly from the engineering tool integrated into the process control system. The configuration can be carried out using DTM interface or using GSD files. S900 Remote I/O is highly integrated in ABB's Process Control Systems. For Freelance, you have the option to either use DTMs or GSD based template technology. For System 800xA/ AC 800M controller, Hardware Definition file exists. This allows for easy engineering of the components as well as...

S9 00 REMOTE I/O SYSTEM INTRINSIC SAFETY IN THE FIELD 01. Communication interface CI920AS/B/N • Fieldbus protocol PROFIBUS DP V1 • HART over PROFIBUS • Line or media redundancy via two coupling modules • Electrical isolation between field bus, power • Diagnosis, configuration and parameterization via PROFIBUS 02. Digital I/O modules DX910S/B/N • Input for dry contacts or proximity switches (NAMUR) • Output for low power intrinsically safe valves • Short and break detection • Electrical isolation between input / bus and input / power • Common return for all inputs / outputs • Configurable as...

INTRINSIC SAFETY IN THE FIELD S900 REMOTE I/O SYSTEM 07. Analog input, HART, AI930S/B/N • Power supply for 4...20 mA loop powered 2-wire transmitters • Short and break detection • Electrical isolation between input / bus and input / power • Common return for all inputs • 4 channels • Cyclic secondary HART variables • Transmission of HART frames via the fieldbus 08. Analog input, HART, pass., AI931S/B/N • Passive inputs for 0/4...20 mA • Short and break detection • Electrical isolation between input/bus and input/power • Common return for all inputs • 4 channels • Cyclic secondary HART...

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