People who work with thermocouples a lot may also not know exactly how the cold junction of thermocouple (reference) works. To be able to discuss the cold junction, we first need a brief understanding of thermocouple theory and how thermocouples work.

Microcyber presented fieldbus and industrial wireless products at the exhibition.

HART and FOUNDATION Fieldbus demonstrably provide tremendous operational efficiency improvements for process facilities when deployed with continuous digital data transmission among instruments, asset management systems, and industrial internet of things (IIoT) platforms.

The product realizes the converter function from Modbus RTU to PROFIBUS PA, and it shall multiple devices with Modbus RTU protocol to PROFIBUS PA network.

In the general sense, the pressure transmitter is mainly composed of three parts: sensor sensor (also known as pressure sensor), measurement circuit and process connector. It can transform the physical pressure parameters that the pressure measuring component sensor feels into a standard electrical signal (such as 4 ~ 20madc, etc.) to supply the alarm, recorder, regulator and other second instruments such as the alarm, recorder, regulator and other second instruments.

In the general sense, the pressure transmitter is mainly composed of three parts: sensor sensor (also known as pressure sensor), measurement circuit and process connector. It can transform the physical pressure parameters that the pressure measurement component sensor feels into the physical pressure parameters of the gas, liquid and other physical pressure parameters into a standard electrical signal (such as 4 ~ 20madc, etc.) to provide the second instrument such as the alarm, the recorder, the regulator and other second instruments for measurement and instructions. Process adjustment

intelligent temperature transmitter adopts field bus technology, is a new generation of intelligent temperature transmitter, is an indispensable field device in process control. The device integrates a wealth of functional modules, which can achieve both general detection functions and complex control strategies.

According to the recent reader survey of Control Engineering Chinese Edition and CONTROL ENGINEERING in the United States, the application and development of industrial Ethernet technology show the following seven trends

By analyzing the needs of users, we can roughly divide the technical requirements and expectations of users on the fieldbus into the following three levels:

APC3 is a fieldbus dedicated chip for the development of PROFIBUS DP intelligent slaves, supporting the complete DPV0 protocol. APC3 is fully compatible with SPC3LV and VPC3 working in DPV0/3.3V/1.5K dual-port RAM mode.