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IS1 remote I/O
the market leartor
10
R. STAHL has already marketed the second generation of an explosion protected Remote I/O System: the IS1. It features a simple structure, unique flexibility and tremendous efficiency and economy, and these aspects make it the most popular Remote I/O System for explosion hazard areas. System planning is impressively simple using only three
Special Aspects
installation in Zone 1, Zone 2,
Zone 21, Zone 22, Division 1 or
Division 2
intrinsically safe fieldbus:
Profibus DP V1 HART,
Modbus RTU
>
fieldbus with either copper wires
or fibre-optic cables
>
intrinsically safe inputs
and outputs Ex ia or Ex e
>
hot-swapping of all modules
>
optional ServiceBus for
commissioning, troubleshooting
and HART communication
full HART support
>
easy mounting on DIN rails
>
BusRail with integrated
data/address and power bus for
extremely easy project planning
basic components (Figures 1 and 2). Any requirement can be met flexibly with IS1, regardless of whether the application requires only a few signals or very many signals or whether it necessitates installation in Zone 1, Zone 2 or in the control room. The intrinsically safe system struc­ture with Ex i fieldbus, using either copper wires or fibre-optic cables, allows the system to be serviced and repaired even in hazardous areas. The system may be provided with a redundant structure if availability requirements are stringent. Multi-channel modules and convenient commissioning and servicing tools mean that IS1 from R. STAHL is the perfectly economical solution. The international approvals allow use of the system worldwide.
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