Quadlog process safety systems get upgrade path from Siemens
Process industry users can modernize their safety and control systems while leaving the Quadlog or Quadlog I/O modules in place, says Siemens Industry Inc.
Plants with legacy Quadlog process safety system installations can modernize to the enhanced capabilities of the Simatic PCS 7 process control system with a new offering from Siemens Industry Inc.
The Quadlog DP/IO BUS Link enables modernizing the controllers while leaving the TÜV rated Quadlog or private labeled Quadlog I/O modules in place. The existing safety matrix (cause and effects configuration) can also be retained, which enables plants to keep their current safety levels while updating to hardware that supports node-to-node redundancy and a SIL3 rating.
By modernizing the Quadlog safety system, plants also achieve enhanced process control capabilities, including the flexibility and added capacity of multiple scan rates (down to 10 milliseconds). The modernization to PCS 7 also provides higher fault tolerance, flexible modular redundancy, higher safety (SIL 3 independent of redundancy with no degraded mode), integrated asset management, integrated safety fieldbus and integrated Ethernet.
Process Control Channel in Control Engineering
SafetyBase.com , for safety education and information- Edited by Renee Robbins, senior editor
Control Engineering News Desk, www.controleng.com
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