Growing capabilities of discrete outputs

The discrete outputs of a safety system are the principle means that process safety instrumented systems interact with the real world. But today's discrete output modules offer far more than their predecessors.

In this article from Control Design's sibling publication Control, John Rezabek explains that although today's output modules offer more capability to detect more subtle changes, they only bear fruit if they're routinely monitored. 

Read Ins and outs of discrete outputs to learn more.