{"id":15176,"date":"2024-04-08T00:00:00","date_gmt":"2024-04-08T00:00:00","guid":{"rendered":"https:\/\/www.dmcinfo.com\/our-work\/python-modbus-communication-for-environmental-monitoring\/"},"modified":"2025-09-08T15:57:11","modified_gmt":"2025-09-08T20:57:11","slug":"python-modbus-communication-for-environmental-monitoring","status":"publish","type":"our_work","link":"https:\/\/www.dmcinfo.com\/our-work\/python-modbus-communication-for-environmental-monitoring\/","title":{"rendered":"Python Modbus Communication for Environmental Monitoring"},"content":{"rendered":"\n

For this project, we used Modbus as a communication protocol and\u00a0Omega HX303C and OME-ET-7017 Ethernet I\/O modules to write a driver that collects live data within 0.1 seconds.<\/p>\n\n\n\n

The OME-ET-7000 module requires the use of a jumper to switch from the default voltage to milliampere. The IO module uses Modbus reading input registers to store the analog inputs of the temperature and humidity within the 4-20mA range. This will match the detection range for the sensor (0-100\u02da C for temperature and 0-100% for humidity).<\/p>\n\n\n\n

DMC used pyModbusTCP, which uses Modbus TCP protocols to get readings from the IO module. pyModbusTCP’s built-in method handles the address for registers when calling different methods. For this project we used input registers, which are stored by 0x04 address. pyModbusTCP automatically handled the addresses.<\/p>\n\n\n\n

\"python<\/figure>\n\n\n\n

Another feature of this driver is the ability to handle different channels’ logging frequency within a module, as well as handle different IO modules. The program is developed to scale for other IO module brands, which could potentially use other communication protocols.<\/p>\n\n\n\n

Since the client required different sensors to have the ability to log the environment data under different frequencies, DMC used technology such as asyncio<\/a> to allow different IO modules to work together. We also used a priority queue system based on different channels, in this case the sensor, to log frequencies to increase the scheduling performance.<\/p>\n\n\n\n

The resulting solution increased the client’s scheduling performance and met strict sensitivity and temperature consistency requirements.<\/p>\n\n\n\n

Learn more about DMC’s Python Development Services<\/a> and contact us<\/a> today for your next project.<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

For this project, we used Modbus as a communication protocol and\u00a0Omega HX303C and OME-ET-7017 Ethernet I\/O modules to write a driver that collects live data within 0.1 seconds. The OME-ET-7000 module requires the use of a jumper to switch from the default voltage to milliampere. The IO module uses Modbus reading input registers to store the […]<\/p>\n","protected":false},"author":8,"featured_media":15174,"template":"","meta":{"customer":"Amazon","summary":"

DMC worked with a client to design a solution for a high-end, expandable environment monitoring system. This system is crucial for the client's laboratory team due to the sensitivity requirements of their equipment.<\/p>\r\n","description":"","customer_benefits":"