Corrosion problems at an Amine Plant eventually caused a Contactor (at about 1000 psi) to break free from its foundation and crash into a compressor building, narrowly missing several gas compressors. This caused gas production to drop until a replacement plant could be constructed.
Installed new HMI to interface with the Amine Plant PLC. Integrated this HMI with the existing plant-wide HMI, adding a new interface, new screens, and a streamlined network architecture.
Upgraded the existing SCADA system with new computers, network switches and protocols, and PLC communication cards.
Modified PLC and HMI programming to allow safety devices to be placed in bypass (with an administrator password) to allow for monthly testing without shutting down the plant.
Installed real-time corrosion monitoring system.
Provided detailed electrical drawings including:
PLC drawings
Conduit Layout drawings
Interconnection drawings
Motor control drawings
Networking drawing
Results
Increased product quality.
More productive employees.
More reliable equipment.
Able to achieve environmental and safety compliance.
Details
Client: Nuevo Energy Company Location: Rincon, CA
PLCs:
(2) Siemens/TI 545
(2) Allen Bradley SLC 5/05
(2) Allen Bradley SLC 5/04
(3) DirectLogic D2-260
(1) DirectLogic D2-250(-1)
(1) DirectLogic D0-06
833 discrete, 328 analog
HMIs:
(5) SCADA nodes - Wonderware InTouch 7.11
4820 tagnames
Remote Alarming:
none
Data Historian:
Custom Visual Basic application (provided by others) with Microsoft Excel.
