CPU isolation terminal will become the industry mainstream

At present, with the development of science and technology, the design of isolated terminals is becoming increasingly smaller, and the purpose of miniaturization is to occupy less space. Of course, users should be allowed to install intensively. If there is a thermal problem in dense installations, internal power consumption must be reduced. Therefore, the value of the internal power consumption should also be taken into consideration when selecting it.

The relevant person of Jinhu Mingtong believes that there are many isolated terminals with CPU as the core in the market, which has onsite compiling and communication functions and high flexibility. It can reduce the inventory quantity and reduce the capital backlog for customers.

The CPU-based isolation terminal will become the mainstream in this field.

There is another way to isolate the transmitter. The sensor and transmitter must be in one place and must be placed in a designated location on the site. Isolating terminals are generally placed in a central control room cabinet. Isolating terminals in the cabinet are used to distribute power to field transmitters. Which one to use depends on the PLC interface.

On-site commissioning may result in mismatch between the instrument and the PLC interface. The sending device is a 4-wire transmitter output of 4 to 20 mA, and the 4 to 20 mA interface on the receiving side is a two-wire loop power supply. If the direct connection is used, power conflicts will occur.