Typical application of OMRON in tunnel control touch screen

1, project background

Zhangzhou screen screen application OMRON and screen screen application OMRON longyan highway 100 km, including weathered ridge, big cock, as soon as possible after, NaJing four tunnel; Is one of the important traffic trunk inland to the coastal ports of fujian province; Opened by the end of 2004.

Polysaccharide yu traffic engineering co., LTD., Beijing contracting its charge, communication, monitor the construction of the three systems. Provide a full range of regional controller RTU, the controller of the control system chooses omron CS1 series programmable controller, the man-machine interface chooses omron NT631C, including system integration, software development, technical support and customer training.

2, the system composition

OMRON offers a specification of a variety of different size touch screen and display. The NT631 / NT631C is a powerful display unit (programmable terminal), he automatically display information, available when you need it to operate.

Big longshan tunnel length of 2.8 kilometers, the hole inside the lane indicator, co/vi, wind speed and direction, lighting, traffic lights, fan, lighting, vehicle detector and other equipment. Control system, there are seven RTU controller (area), PLC as the main controller, which the mouth of the cave room connected with NT631C. Seven RTU by CLK52 - V1 Controller link fiber module redundant optical fiber ring network. Main controller by ETN21 Ethernet module connected with the network switch, the switch through the optical fiber communication system the information spread to more than 100 kilometres away in zhangzhou west monitoring information. Fire alarm host by SCU21 - V1 serial interface module and PLC connected to the host. Touch screen NT631C connected through RS232 interface and PLC.

3, functional description

OMRON NT631C local master field personnel control and touch screen for the convenience of tunnel design. Through the device field personnel to set the traffic patterns, for a single point of control traffic. Site management personnel to traffic patterns, tunnel city, CO/VI, wind speed and direction. If the tunnel fire equipment will display information, fire management under the condition of the monitoring center can't control can also be for fire control.

If monitoring sub-center and tunnel remote communication interrupt, it can also replace sub-center almost complete all control and monitoring functions.

4, part of the man-machine interface is as follows

NT631C although only support 8 colors, but a collection of PLC program can be developed completely vivid and intuitive monitoring images of various kinds of friendly. Develop similar configuration software, don't need to write complex code can be quickly developed the stability monitoring program.

5 , the function of NT631C characteristics

1, small size, light-weight (screen thickness of 50 mm or less);

2, the most suitable for FA type structure;

3, with functions of image data check, the login screen is larger;

4, can be read directly from the upper machine, and write a binary number;

5, with graphics, characters, history curve, lights, alarm list, list of display function;

6, voice, picture print, switch input characters, data input, bar code reader input function;

6, the result analysis

With the rapid development of national economy, the industry is more and more high to the requirement of automation, PLC, DCS control system has been widely used in our country; Field, which is connected with PLC control display is also widely used. NT631C is a stable performance, fast development cycle, and can support any bitmap display, set the PLC program can develop a variety of vivid and beautiful dynamic images. Can fully meet the development and application of field control level.