ABB Jokab Safety offer a range of accessories for Pluto Safety-PLC such as cables, connectors, function blocks and identifier circuits (IDFIX). IDFIX is an identification circuit that is unique to each device on the Pluto bus. It includes an identification code and makes it possible to distribute a PLC program in the network. There are four different versions: R, RW, DATA and PROG. In addition to the identification code, DATA may also include safety codes from the AS-i nodes in an AS-i system. PROG includes the current PLC program and is used with single-Pluto for program distribution.