Tunnel PLC control box-Fornitore globale

Building 2, Xufa Technology Park, Matian Street, Guangming District, Shenzhen, Guangdong Province, China

Product details:

purposeTunnel sections are special and bottleneck sections of the entire line, and due to the influence of various factors such as space, sight, and light on vehicles inside the tunnel, there is a high possibility of inducing various traffic accidents, fires, and other abnormal traffic conditions.

In order to improve the road traffic environment, enhance driving safety, and maximize the traffic efficiency of roads; Prevent congestion on main roads, clear blockages, smooth traffic flow, and reduce accidents; Assist traffic management personnel in discovering and handling various traffic accidents in a timely manner; Remote control and monitoring of traffic equipment inside the tunnel are required.

PLC brand:Siemens, Omron ABB、 Schneider et al.

In order to ensure the stability of communication, the tunnel area controller uses industrial Ethernet and four core single-mode optical fibers to form a ring network fiber redundant industrial Ethernet ring network, as shown in the following figure:

Hardware Design of Regional Controller（westDoor)

PLC systemThe design has been chosenSiemensModular small and medium-sizedPLCsystemS7It can satisfysystemThe applications with performance requirements have a wide range of application fields. It is modular and easy to implement for distribution、Easy for users to grasp and other features makeS7seriesBecoming varioussmall and medium-sizedPerformance requirements control taskspreferred.S7The series has multiple performance featuresCPUAnd richI/OExpansion modules allow users to fully select suitable modules based on their actual applications.

The selection of PLC should mainly be based onPLCThe model, capacityI/OComprehensive consideration should be given to modules, power modules, special function modules, communication networking capabilities, and other aspects.PLCThe basic principle of model selection is to meet functional requirements and ensure reliability and easy maintenance，Strive for the best performance price ratio. When choosing, the main consideration should be a reasonable structural type，Selection of installation method and corresponding functional requirements，Response speed requirements，The requirements for system reliability, as well as factors such as striving for uniformity in aircraft models.PLCIt is a universal controller designed for industrial automation,Different gradesPLCThe response speed can generally meet the needs within its application range.

usuallyPLCThe input types can be DC, AC, or AC-DC, with DC signal input being the most commonly usedPLCThe power supply for the input circuit can be provided by external sources, and some can also be supplied byPLCProvide its own power supply.