Siemens QLCCM12AAN Critical Control Module

Technical SpecificationsModel:QLCCM12AAN (16808-1/OC) Brand:Siemens Product Type:CCM Critical Control Module System:QUADLOG Safety Instrumented System / APACS+ DCS System Power Supply:24V DC, typical 0.25~0.4A Mounting:Rack mount Operating temperature:-20℃ ~ +70℃ Storage temperature:-40℃ ~ +85℃ Relative humidity:5%~95%, non-condensing Weight:1.8kg Dimension:40mm260mm310mm

System compatibilityQLCCM12AAN belongs to Siemens Moore QUADLOG SIS series. It is the core safety processor, compatible with QUADLOG safety I/O modules such as QLCAMAAN, QLCDODCAAN, QLIDM115ACBBN, and matched marshalling termination boards, can work together with APACS+ DCS platform.

FunctionThis CCM critical control module is the central safety CPU of QUADLOG SIS. It executes safety interlock and emergency shutdown logic, collects analog and discrete safety signals from field I/O modules via backplane bus. It completes safety voting, continuous hardware self-diagnosis, and triggers ESD protection action when process parameters exceed safety threshold. Equipped with battery backup memory to retain safety logic program during power loss, supports program download, online monitoring and fault diagnosis via engineering workstation.

InstallationPower off the rack chassis before installation. Insert the module into designated rack slot and lock the front latch, ensure backplane connector fully engaged. Set module address switch, download safety logic program through QUADLOG engineering software after power on, complete full SIF loop test before online operation.

InterfaceBackplane bus connector, front LED indicators for power, run, fault and communication status, battery backup compartment, configuration DIP switch.

FeatureQUADLOG dedicated safety critical controller, comprehensive continuous self-diagnosis, battery-backed program memory, safety voting function, galvanic bus isolation, designed for safety instrumented ESD system. Obsolete legacy spare part, used for QUADLOG SIS safety controller maintenance and replacement.

DiagnosticNo power: check rack 24V DC power supply and backplane contact. Module fault alarm: read diagnostic codes via QUADLOG software, inspect backup battery status and program integrity. Communication failure: verify backplane connection and module address setting.

Product BriefSiemens QLCCM12AAN is QUADLOG series CCM safety critical control processor module, widely used in petrochemical, power and pulp & paper industries for safety instrumented ESD interlock control.

DisclaimerAll parameters are for reference only and shall not be used as the basis for quotation. Goods are scarce, overseas delivery lead time is 3-7 working days. It is only used for equipment maintenance and renovation.