In-Series Diagnostics (ISD) makes it easy to access diagnostic data from devices in a safety system without special equipment or designated cabling. Users can troubleshoot machine safety systems, prevent system faults, and reduce equipment downtime. This innovative, next-generation technology is exclusive to safety devices from Banner Engineering. ISD-compatible devices achieve the highest levels of safety (Category 4, PL e, or SIL CL 3 safety ratings). ISD, overlays device data on top of the safety OSSD signals manufacturers know and depend on. ISD sends alerts and device information to your PLC for each device, delivering the highest level of safety and advanced diagnostics, and allows you to connect up to thirty-two ISD devices on a single four-pin cable.