The Siemens 6ES7157-0AD80-0XA0 is a SIMATIC DP distributed I/O DP/PA coupler, EX-version (EEX(IB)) designed for an expanded temperature range, coupling PROFIBUS-DP to PROFIBUS PA segments.
Sourcing & Lifecycle
Keep the order code clean: 6ES7157-0AD80-0XA0. The EX suffix matters — a standard DP/PA coupler won't carry intrinsic safety approvals or the widened temperature rating.