The plant produces cyclopentane, isopentane and methyl propadiene.
The challenge in this application is the length of the optical fibre used for high-speed data transmission.
The safety functions are performed by two existing HIMA H51q safety controllers that serve as ESD systems for controlling loading (non-redundant) and quick stops (redundant).
Operation and visualisation of the safety technology was implemented using Himax to ensure that the controller level and safety level were separate.
Hima installed the Himax safety system.
The job included engineering work, programming the visualisation of the touch panels and the Himax controller, the factory acceptance testing (FAT) and commissioning the system.
Himax allows the existing optical fibres to be used for remote data transmission, which involves a redundant distance of slightly longer than one kilometre.
The Himax system includes a redundant master CPU and a remote module, which communicate with one another via optical fibres.
The system handles around 140 I/O signals.
The use of optical fibre technology enables fast and secure data exchange between the two Himax components.
The H51q controllers are connected to the Himax system via Modbus TCP.
Two TFT touch panels in the control room operate and activate the safety system.
Hima structured the visualisation so that the control-room team - experienced with panel displays only - would quickly get used to the system.
For more information visit www.hima.com. |
