charge on the BGIA website .

Two resources have been created as aids in determining the PL specs for a wide array of Rockwell Automation safety products. Data is now available in an electronic library or pdf datasheet, both available over the web at http://discover.rockwellautomation.com/SA_EN_Machine_SISTEMA.aspx. Each can be used with SISTEMA.

“When safety systems get in the way of productivity on a machine, that is when safety is most likely compromised,” says Jones. “If every time your safety system is upgraded, it takes a half hour to get your machine up and running, you can be sure that someone, somewhere is going to try to override that safety.”

That, in itself, is a significant cause of accidents, which is why Jones says you should never think about safety without thinking about productivity. “That is our message,” he says. “That is the reason the use of programmable safety technology is so useful—not because in its own right it is any better than simple technology, but because it allows you to integrate productivity and increased safety, therefore helping reduce the temptation to shortcut or bypass safety.”