Sea for H32DT series PLC application in coal mine goaf temperature monitoring system design - Industrial control -

Introduction: our country is a coal power, a large number of coal reserves under the ground, underground work is inevitable, so how to guarantee the safety in production, the smooth coal as a research emphasis in many coal mine safety workers. Facts show that the annual events during coal combustion is the disasters in coal mines, not only easy to cause loss of tens of millions of yuan equipment, but also may cause personnel casualties. The focus of the mined-out area is prone to coal spontaneous combustion area, early monitoring is very important. Thermometry is now the most common and most direct combustion monitoring technology. The sea for a H32DT module can measure the temperature in the zones of the 32, bring their own disconnection alarm, temperature measurement industry has been widely used in coal mines. In this paper, according to the demand of temperature monitoring of mined-out area, by the sea for the host, H32DT module, H01ZB module, designed a set of ZigBee technology, the programmable control technology, the temperature sensor technology, database technology is one of the mined-out area temperature monitoring system.

key words: Haiwell ( The sea for) Domestic PLC H32DT H01ZB module coal temperature

a, coal temperature measuring network introduction

network diagram

2, 2 main hardware system. 1 the sea for PLC

for PLC host comes with two communication port, can be extended to five communication mouth, each communication port can programming and networking, all can be used as the main or from the station. Support 1: N, N: 1, the N: N network, support a variety of man-machine interface and configuration software, can with communication function with any third party equipment ( Such as frequency converter, instrument, bar code reader, etc. ) Connected to the Internet.

2。 2 H32DT module

H32DT ( 32 road temperature measurement module) The temperature in the range of: - 55 ° ~ 125 °, the digital chip decided to temperature, the highest measurement accuracy is 0. 0625, display precision of 0. 1, and the acquisition value of the temperature of no error, the cost is low. Extension module can be used as any kind of PLC of the host, which take a RS - H32DT module 485 communication port, also can be used as a remote I/o module; External 24 VDC power supply. H32DT available in a wide range of temperature measurement, such as coal mining, tunnel such industrial environment. Each channel can be connected 16 sensor, a single module can collect 32 road temperature value.

2。 3 H01ZB module and PC2ZB module

PC2ZB is an extension module for the PC wireless communication. Through the module, HaiwellHappy between upper machine and expanded the H01ZB PLC host to wireless way online and read and write operations. Zigbee module using simple and convenient, need not configuration parameters, toggle the module's own dial the code switch can easily form a network. Module in the zigbee protocol itself retransmission mechanism, on the basis of added response on application layer retransmission mechanism, to further improve the stability of the communication.

2, part program

4, 1, the sea for PLC system advantages bring RS232 and RS485 communication port, the use of PC to read the temperature of the coal mine field data, the understanding of the field situation in a timely manner, once appear when the temperature exceeds the alert value, to correctly handle in time, avoid unnecessary damage and casualties.

2, underground and ground wiring difficult, once appear, aging lines, bolt problems difficult to troubleshoot, must spend a lot of time to deal with line problem, make the scene temperature for a long time is in a state of unable to monitor. HO1ZB module of this system used for sea and PC2ZB module to form a wireless communication network, in the field environment under the condition of no change, there will be no communication break line, completely solve the problem of line.

3, use H32DT module, a module can monitor the temperature in the zones of the 32, the cost is low; The module itself bring disconnection alarm, communication; Module USES DS18B20 the data read communications, digital chip decided to temperature and high precision. The module itself also comes with RS485 communication port, when the temperature measurement point is far away from the host, can be used the module as a remote module, reduce wiring, to measure the temperature of the large area of the coal mine.

technology zone of sea for H32DT series PLC controller application in coal mine goaf temperature monitoring system is designed based on the use of PSS 4000 sanitation of PLC and I/o module is introduced based on the use of TwinCAT IoT software platform to realize the industrial 4. 0 modern control system for the sea S16S2R series PLC application in the detection of ultrafiltration water treatment product quality design HiNet gateway combined with PLC, can solve the problem of the customer PLC remote programming and debugging
Service-based companies as Shenzhen Coolmay Technology Co., Ltd. are increasingly becoming more popular internationally.
Shenzhen Coolmay Technology Co., Ltd. ’s mission is to provide high quality care and services to our members and to be profitable in the process.
Many homeowners find that they can cut costs while keeping home cool efficiently with .