Siemens Industry, Inc. expanded its SIMATIC ET 200iSP I/O system with three new modules to accommodate safety standards IEC 61508 up to SIL 3 or ISO 13849-1 up to PLe e. The modules are suitable for emergency shutdown applications.
The ET 200iSP is a modular I/O system for hazardous areas, including gaseous and dusty atmospheres. Its sensors and actuators are connected directly to a bus system and the I/O system may be mounted in a non-explosion proof cabinet.
The I/O system is FM approved for mounting in Class 1 Div 2 and Class 1 Zone 1 areas connecting directly to devices mounted in Class 1 Div 1 and Class 1 Zone 0 without the need for external safety barriers.
Within the ET 200iSP is a bus isolating transformer, creating a Profibus DP intrinsically safe communications network.
Function modules, including an explosion proof power supply, Profibus DP interface modules and up to 32 electronics modules in any combination are plugged into terminal modules. The ability to “Hot Swap” the electronic module during operation helps users avoid costly downtime of stopping the controller.
Fault information is sent to the host system, permitting fast online diagnostics from a central location. Standard diagnostic drivers are available.
Most process instruments, including temperature, fill-level, pressure, and flow rate measuring equipment, may be accessed and configured.