Product Description:

The 7AF104.7 adapter module is manufactured by B&R Automation for use within the System 2003 Controllers series. Deployed in machine controllers and process lines, it offers a mechanical and signal interface that couples the PLC backplane to removable screw-in sub-modules. In an automation rack, the part’s role is to provide a standardized slot where future analog measurement or digital logic boards can be installed without disturbing existing field wiring or the main controller layout.

A footprint designated as single-width allows the adapter to occupy only one housing position in the rack. Four threaded carrier points form the front interface; these are the 4 screw-in module slots that accept clip-on signal cards and hold them rigid during vibration. For analog expansion, the board exposes one dedicated analog slot, while diagnostics are handled through a front-mounted status LED that mirrors internal fault flags during operation. Typical controller current demand rises by just 0.9 W when the unit is present, and the enclosure meets the ingress protection level of IP20. The manufacturer lists the I/O category as an Adapter Module, so the card conveys bus power and field signals without adding its own processing core.

Beyond the analog position, the adapter offers 1 logical module slot for discrete or specialized signal blocks, and its status lines are partitioned for each screw-in module so each installed sub-card can report independent operating states. The assembly designates exactly one rack position through the occupied physical slots parameter, which helps keep address allocation straightforward inside the CPU hardware table. Because there is no PLC-to-slot isolation, any high-level protection against external transients must be added on the attached modules rather than on the carrier itself.