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SIL 3 Hart Analog Input Module

Touted as the world’s first TUV SIL 3 certified Hart failsafe analog input module, the Simatic SM 336 is available for use with Simatic ET 200M I/O and PCS 7F process safety systems.

A 50 percent reduction in size provides greater packing density for this certified failsafe I/O, which also has six isolated Hart analog inputs between channels and its backplane bus. It supports single, dual and triple redundancy architectures. Unlike traditional failsafe analog input modules, this module does not require redundancy to achieve SIL 3 certification. Hart communications and diagnostics for the module are set up from a central computer with Simatic PDM software. All diagnostic information from the devices are readily available on the central computer. The module provides short circuit protection and supports two or four-wire transmitters. Local LED displays indicate failsafe operation, channel specific faults and Hart status.

Siemens Energy & Automation Inc.
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