180248 ⎘
Program-control systems; Plc systems; Plc I-O input output Critical I-O monitored by safety module connected to plc, other I-Os by plc self
ENERGY LIMITING BARRIER FOR UNIVERSAL IO IN INTRISICALLY SAFE INDUSTRIAL APPLICATIONS
#2Cascade of safety switches with additional voltage source connection
#3Arrangement and method for controlling an automated system, in particular a railway system
#4Programmable controller
#5Process control