Siemens W30809-B1110-W-2-B900 Peripheral Control Board

The Siemens W30809-B1110-W-2-B900 Peripheral Control Board is a used replacement module for the Siemens PERCON-M control system, carrying the identifiers W30809-B1110-W-2-B900 and B1110-A100. In reseller catalogs and listings, the device is also described as a “percon-2-b900” peripheral control board, confirming its role as a peripheral interface within the PERCON-M family rather than a standalone controller. The item appears on secondary-market platforms as a Siemens surplus part, typically offered for repair or replacement of aging automation hardware. These listings establish the board as a genuine Siemens module intended to substitute a failing peripheral control unit within equipment that uses the PERCON-M architecture; buyers generally source it to restore compatibility with existing peripheral connections in legacy systems. Because the part is tied to the PERCON-M ecosystem, it is commonly seen referenced together with B1110-A100 in documentation and refurbish listings, underscoring its identity as a B1110-series peripheral control board rather than a general-purpose PCB. Availability tends to be limited to surplus, used, or refurbished stock through industrial dealers and marketplaces.