Application 3
Application 3
Application No.3 - Factory Control
Application No.3 - Factory Control
Embedded Files
This application deals with the control of all the materials handling equipment within a Factory.
The project involved panel design, plc, SCADA and hmi application software, data logging and on site commissioning.
Key components:- Mitsubishi Q series PLC, Mitsubishi IPC running MX4 SCADA software, ethernet, Red Lion Data Station,
E300 hmis, E1101 hmi, Mitsubishi Inverters
Please scroll down to see more detail of the application
This drawing shows the configuration of the system.
The central part of the system is a Mitsubishi Q series plc, communicating over ethernet with:- a Mitsubishi colour, touch screen IPC (Industrial Computer) running MX4 SCADA software, and a number of Beijers hmis. The Inverters are controlled using discrete I/O, running at 2 discrete speeds. Data is logged to a red lion data station. All manual control is carried out via the touch screen.
This drawing shows a schematic representation of the Materials Handling equipment.
The whole plant is controlled via a centralised control system, with operator controls at each control point. These controls comprise an hmi, giving the operator access to all necessary functions, timer and parameter adjustment, and notification of any alarm condition.
Apart from depicting the status of the machine, the hmis incorporated several different levels of password protection, enabling parameters to be accessed and modified without the need for a laptop
The manufacture of the panel, in this instance, was sub contracted due to the work load and time scale
What the plant does
The system controls the whole of the materials handling within the plant.
Granules are fed into the system from either the bag tip system or from tanker, and are stored in a number of granule silos. These granules are taken from the silos, pulverized, and fed back into powder silos.
The powder is then taken, passed through a number of mixing plants (where pigment is added), and fed back to coloured storage silos.
Coloured material is then conveyed to a number of machines, where accurate shot weights are dispensed when required.
All required and actual shot weights are logged and time stamped.
Manual operation, timer and parameter adjustment are all available via password protected screens.
Local control at each machine is achieved via a number of hmis (Human Machine Interfaces)
The slideshow above shows photographs of the plant that PJC Systems controlled.
Granules are discharged into granule silos
The granules are taken from the granule silos, pulverised and transferred to powder silos
The powder is then taken, blended with coloured pigment, and transferred to coloured powder silos.
The coloured powder is transferred to weigh hoppers adjacent to each production machine
When required, the correct weight of coloured powder is discharged into the mould
These are photographs of the control panels that PJC Systems designed for this project. Due to the timescale of the project, we sub-contracted the manufacture of the panel to a local panel building company with whom we work closely. The starter panel was 3,400 wide x 1,900 high (including the plinth) x 400 deep, and the plc panel was 1,600 wide x 1,900 high (including the plinth) x 400 deep.
The local operator control panels were either 500 x 500 x 210 (for the stations with text hmis), or 600 x 600 x 210 for the stations with graphic hmis. In all there were nine panels on the project.
The slideshow above shows some of the screens that PJC Systems designed for this project.
There are graphic interfaces on the main control panel, and adjacent to the mixers. At other operator stations there are text hmis. PJC Systems developed pages to depict the status of all aspects of the plant, to adjust all critical times and parameters, and to display alarms. Manual control is via the E1101 touch screen hmis, but password protected to prevent unauthorised access .
Although, in this case, PJC Systems did not manufacture the control panel, we produced the engineering drawings, as shown in the slideshow to the right.
PJC Systems generated the following drawings:
Externals - showing how all the external wiring connects to the system
Internal wiring diagrams - showing all internal panel wiring.
In this case, we didn't generate layout drawings, but worked closely with the company building the panel to ensure a suitable arrangement.
Page updated
Google Sites
Report abuse