A chemical industry engaged in the manufacture of polypropylene, thermoplastic polymer obtained by the polymerization of propylene. It os used in a wide variety of applications that include food packaging, textiles, laboratory equipment, automotive….
Description of the automation system
This plant is automated with a set of 14 PLCs, five types of SIEMENS S7-400, 7 SIEMENS S5-135U and S5-115U and 2 SCHENIDER Quantum. For the supervision system has been used a SIEMENS HMI WinCC with a client-server structure.
The monitoring system is based on SIEMENS scadaWinCC, this includes a set of two redundant servers with a total of 5 clients centralized in the control room, three clients to control the transport of raw materials and finished product and another touch-screen client to operate on the logistics from the field.
With an access control system to clients using chip-card, the handling of each client is at all times in accordance with the established privileges.
For the control there are installed 5 PLC of the type SIEMENS S7-400, 7 PLC of the type of SIEMENS S5-135U and 2 types of Modicon SCHNEIDER-984, with an average of 200 inputs and 200 digital outputs, 64 analog inputs and 32 analog outputs.
The network system level; servers and Siemens PLCs, is a 10Mbps Industrial Ethernet with cable between the two servers and granulation PLCs and with multimode optical fiber between these and the logistics PLCs. Between servers and PLCs Modicon a 10Mbps Modbus + network has been created.
At the level of supervision, between servers, clients, and printers the network is a 100Mbps Ethernet combined between twisted pair and fiber optics, as needed.
There are local networks of remote PLCs for their ET 200M, ET200L in Profibus cable to 1.5 Mbps.
Includes a remote monitoring system via the intranet, where a customer control system is both Web server, with the restrictions and required securities. This will be viewed continuously from any authorized point the state of the production.