Bar mill control system and HMI upgrade

2015 - Catersville, GA - USA

Related Projects

Following the recent modernization of the DC drives of the Cartersville mill in just six days, Gerdau upgraded the existing control system and HMI architecture at the Cartersville plant, together with Russula.

The scope of the control upgrade included all the controls equipment from the first stand to the cooling bed. The current ABB AC450 PLCs and ABB AS500 SCADA operator inferface were replaced with the ABB AC800M series and Wonderware Intouch. Russula mill control was implemented for the entire mill.

Control Upgrade Scope of Supply

New main control cabinet supply and installation, disconnecting and rewiring local field signals.
Replace existing PLC with an ABB PM891 from the AC800M family.
New Siemens Simotion shear positioning system.
Remote unit modification to communicate by Profibus DP without disconnecting any signal field unit.
Integration of new control system within the data acquisition IBA network.
Full development and implementation of the control system and HMI according Russula quality standards and customer requirements.

Results

The new bar mill control and HMI architecture was implemented during a planned shutdown in September, 2015 along with the upgrade of one of the strands of the four strand continuous caster.

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