NX Dynamics

The iMod gprs telemetry system has a wide range of applications in the field of automation. One of the many branches of industry in which the iModfulfills the expectations of clients, and the requirements for control systems, refrigerating engineering is. Peter Thiel has much experience in this field. The application of an embedded computer the iMod, in refrigerating engineering industry type, has been discussed using the example of the construction of a refrigerated container. It serves to transport loads requiring the maintenance of a specific, constant temperature. The iMod fulfills two functions in the automated system of a refrigerated container: the function of control of the operation of the unit (compressor), fans, heaters and refrigerating, the function of control of container operation (temperature monitoring). Control is realized through the application of the capabilities of iMod PLC, which, besides the basic capabilities of the module, also enables operation as a programmable logic controller (PLC).

This makes it possible to automatically control digital and analog inputs/outputs in a simple way. It is sufficient to write the appropriate program in ladder logic using the application that comes with the device. The iMod is equipped with the 1-Wire bus, which supports a number of temperature and humidity sensors that is sufficient for the correct operation and monitoring of the refrigerated container. Additionally, by connecting the iModdevice using the RS-485 port and the Modbus protocol to the dedicated TPD-430, touch panel, the user of this device has the capability to direct: regulate the temperature inside of the container s loading chamber, signal optically refrigerating unit work states, measure and display temperatures inside and outside of the container, to monitor the technical state of the refrigerating unitindicate alarm and emergency states, register data coming from sensors. Thanks to the built-in EDGE/GPRS module, it is possible to access registered data, temperature values, and alarm states.

Because of this, the user will always know current operating parameters, even during it is being transported by container is. Additionally, the data that can be registered at specific time intervals is saved to the module memory or to external memory cards (up to 2 Gb). This data is saved in the CSV file format or to an external database. By using an internet connection, the user has constant access to the operating parameter values of the container through CSV files or directamente, with visualization. The NX Dynamics application can be used for this purpose, enabling a graphical temperature and pressure preview directly from page or a mobile device such as a cell phone.

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