Phoenix Contact’s new modular safety controller makes it easy to expand I/O in a safety circuit. The PSR-TRISAFE/M (for modular) connects up to 10 safe digital I/O modules, thanks to a T-bus system. The TRISAFE/M’s base station has 20 safety input signals and four safety category 4 outputs. It also provides outputs for a test pulse, alarm (aux), and ground switching. The safe digital I/O module can be configured as either 12 safe digital inputs, or eight safe digital inputs and four safe digital outputs. Each point on the safe expansion module can be controlled individually.Learn more from Phoenix Contact.