Siemens 6FC5312-0DA00-1AA1 Tool Control Unit for SINUMERIK 840D SL

Siemens 6FC5312-0DA00-1AA1 is the SINUMERIK 840D sl TCU 30.3 thin client unit, a dedicated front-end module within the SINUMERIK/SIMOTION automation family that provides the lightweight interface used by the SINUMERIK 840D sl CNC control system. The part number identifies the TCU 30.3 revision, which Siemens lists as the current thin client unit for SINUMERIK 840D sl configurations. This model supersedes earlier hardware variants, including TCU.1 (6FC5312-0DA00-0AA0/0AA1) and TCU30.2 (6FC5312-0DA00-1AA0), reflecting Siemens’ hardware evolution for front-end functionality in configurations where a thin-client setup is required. Available through Siemens Industry Mall as a SINUMERIK 840D sl TCU 30.3, this unit is used in retrofit, maintenance, or upgrade scenarios of SINUMERIK/SIMOTION installations that require a thin client front end to support operator interface capabilities and tooling coordination within the 840D sl control architecture. The product is cataloged under the SINUMERIK 840D sl family with the 6FC5312-0DA00-1AA1 designation and is intended for professional industrial environments that rely on Siemens CNC control platforms.