SUPPLEMENT PRODUCTS PLCS & INDUSTRIAL PCS ETHERNET FLEXIBILITY AND POWER
these additional relays means a further saving on wire and wiring time. So you have reduced your
The new IDEC SmartAxis Touch from IDEC Electronics provides the control and HMI needs for small machines, feed and dosing systems and many other applications. Firstly, for the cost concerned user, it is
important to recognise the cost saving that can be made when using the SmartAxis combination PLC/HMI. As the unit has both the control I/O and display in the panel mount HMI body there is no need for space inside the control panel to mount the traditional PLC. Then the four relay outputs on the controller are rated at 10A per point which allows the direct connection of solenoids and small motors, removing the need for additional interposing relays, again saving space. Without the need for
manufacturing/assembly cost, but the story does not end there. The product offers other technical advantages due to the high specification and features. The screen size is 3.8" (100 x 300 pixels) and is a resistive touch format allowing freedom with your screen design and button locations. A choice of either colour or mono is available - the colour version has 65K colours and a super bright, high resolution LCD TFT screen while the mono version provide a 740 cd/m2
LCD STN
display which is backlit by either a white, red or pick LED light to draw the attention of the operator when alarms are present or actions are needed. If your application has the need for high speed
inputs from an encoder or similar pulse train apparatus or the need to ‘catch’ the input from a sensor detecting a fast moving target, then the built-in high speed inputs (single pulse 10kHz, four points or two-phase 5kHz, one point) can easily accommodate this need. While we look at the controller inputs it is important to point out the two built-in analogue inputs (0-10V) for the connection of flow meters, distance sensors or
other analogue devices. The communication options featured on the
unit include built-in RS232, RS485 and Ethernet ports, each working independently which allows the easy connection of a barcode reader (RS232), a process instrument such as a temperature controller (RS485) and up-stream data or information devices (Ethernet). The Modbus protocol is used in either Modbus RTU or Modbus TCP/IP formats. The Ethernet port can also support ‘remote maintenance’ where the user can upload to/download from the SmartAxis from their remote location. Functions such as data logging and program transfer can be achieved through the integrated USB port while programming is done via a mini- USB maintenance port. The screen can be utilised to display the status of I/O, easily check/adjust data variables and even view the ladder program – all of which can be password protected with the security function. Additionally there is a built-in real time clock with daylight saving function, well suited for many building and environmental control applications.
IDEC Electronics
www.IDEC.com/uk T: 01256 321 000
Enter 225
ENHANCED SAFETY AND ENERGY SAVING
Earlier this year, Industrial Automation and Control were selected to design, build and commission a full upgrade of the Heavy Shear Cooling Banks control system at Tata Scunthorpe. The project set out to improve the energy efficiency of the system, but more importantly, to upgrade the safety system to bring it into line with current legislation. The safety system monitors three zones, each accessible via safety gates with Castell key exchange
allowing selected areas to be immobilised, whilst maintaining restricted operation in the others. The Pilz 4000 Safety PLC was selected for the central control, with remote I/O installed in the Hydraulic
Panel, Cross Cut Shear Panel and three Zone Safety panels. The system was connected over a SafetyNet communications network, thus reducing cable and installation time. A new Form 4 MCC was built at the IAC premises in Newport, South Wales and included ABB 800 AC
drives, used to replace the existing resistor bank switching and reduce energy consumption. The new panel was controlled by extending the existing PLC system with remote I/O over a ControlNet interface, to reduce the amount of cables required on a system which has limited down-time available. Further remote I/O stations were installed in the Hydraulic Panel and Marking Desk. The new panel needed to meet the
requirements of the latest standards for LV Switchgear, and was fully compliant with BS EN 61439-2 Requirements for LV switchgear and
control gear assemblies, plus IEC 61641 Guidelines for testing Arc Flash containment in enclosed LV switchgear and control assemblies. Status monitoring of both systems was achieved using an InTouch SCADA system installed
in the Production Pulpit. The system was installed and commissioned well within the scheduled period, mostly because of the commitment of the teams from IAC and Tata who worked extremely closely to ensure that every detail was covered. The project was planned and executed successfully mostly because of the excellent working relationship between the two companies.
Company Name
www.iac-ltd.co.uk T: 01633 293 000 S1 NOVEMBER 2014 | PLCS & INDUSTRIAL PCS 2 Enter 232 /AUTOMATION
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