Siemens 16256-11/3 Bus Diverter Module

Technical SpecificationsModel:16256-11/3 (Alternate PN:39DBMNBN) Brand:Siemens Product Type:BDM Bus Diverter Module System:APACS+ DCS System Power Supply:24V DC Mounting:MODULRAC rack mount Operating temperature:-20℃ ~ +70℃ Storage temperature:-40℃ ~ +85℃ Relative humidity:5%~95%, non-condensing Weight:3.0kg Dimension:40mm260mm310mm

System compatibility16256-11/3 belongs to Siemens Moore APACS+ DCS series. It is installed in MODULRAC rack, compatible with ACM controller and APACS+ I/O modules. It supports bus branching for multi-rack expansion, can work cooperatively with QUADLOG SIS system.

FunctionThis BDM bus diverter module realizes backplane bus signal splitting and distribution for APACS+ MODULRAC racks. It extends the proprietary module bus to multiple racks, enables communication and power distribution between main rack and expansion racks. It supports distributed system architecture and redundant bus configuration, ensures stable data transmission between controllers and remote I/O racks.

InstallationPower off the rack chassis before installation. Insert the module into MODULRAC rack slot and lock the latch, ensure backplane connector fully engaged. Connect dedicated bus extension cable between BDM and expansion rack backplane. Configure rack address via DIP switch, power up and verify bus communication and module status after wiring.

InterfaceBackplane bus connector, external bus extension port, front LED indicators for power, run, fault and bus communication status.

FeatureAPACS+ dedicated bus diverter module, realizes multi-rack bus expansion, supports redundant bus layout, hot-swappable module, Class I Division 2 hazardous area certification. Obsolete legacy spare part, used for APACS+ DCS multi-rack expansion and bus communication fault replacement.

DiagnosticModule no power: check rack 24V DC supply and backplane contact. Bus communication loss: inspect bus extension cable, DIP switch address setting and cable termination. Intermittent communication: check connector oxidation, ground interference and rack power fluctuation.

Product BriefSiemens 16256-11/3 (39DBMNBN) is APACS+ BDM bus diverter module, widely used in petrochemical, power and pulp & paper industries for DCS multi-rack bus expansion and distributed I/O communication.

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.