Product Details:

The QLCCM12ABN is a CCMx critical control processor for Siemens QUADLOG safety and APACS+ DCS platforms. It is designed for high-speed safety interlock and fast closed-loop regulation, delivering faster response performance than standard ACMx general controllers. This module supports redundant pairing to achieve bumpless transfer between primary and backup units, which effectively avoids unexpected process trips when the main controller fails.

It is installed in the dedicated QUADLOG backplane rack and communicates with rack I/O modules through a high-speed system bus. Continuous built-in diagnostics monitor bus communication health, memory integrity and redundant synchronization status, and fault alerts will be sent to the system HMI for operator awareness. The suffix ABN defines its hardware version and functional configuration, and it is not interchangeable with regular ACMx processors. It can only run inside QUADLOG configured racks.

The industrial housing is designed for continuous operation in crowded control cabinets. The conformal coated PCB protects internal circuits from condensation and light corrosive vapors that are common in refinery and chemical control rooms. Front panel LEDs clearly display run mode, synchronization status and fault codes for quick on-site inspection.

Most stocked units are surplus modules salvaged from decommissioned QUADLOG systems and fully tested. Before commissioning, technicians must verify rack firmware compatibility and complete offline redundant switchover testing. Mismatched firmware will lead to loss of redundant function.

Industry Applications: Applied in oil refineries, gas compression skids, boiler safety systems and chemical reaction units for safety interlock and fast critical loop regulation.

Note: Confirm QUADLOG rack configuration and redundant pairing setup before ordering

This is from our current stock.