Now there is a demand, need to know the temperature and humidity of a place, so buy the usr - tcp232-304 and a temperature and humidity equipments (like what 485 protocol), general need is to put the related equipment in other location, and then the remote can get his value, finally write an interface document calls return value directly, now want to know about process and how to obtain the value of equipment,

CodePudding user response:

First of all, is the temperature and humidity equipment output data are ahead of 485 agreement, which is the temperature and humidity information extraction in the 485 agreement, usr - tcp232-304 is 485 turn so equipment, so that the temperature and humidity information can through the network remote access,

You need to make sure the usr - tcp232-304 and 485 hardware interface definition of temperature and humidity equipments are consistent, and then confirm if there is a data network to upload; Then your proximal device so whether the received data; Then analytic network protocol to extract the corresponding data value,

The whole demand involves 845 interface definition, 485 turn TCP/IP (the usr - tcp232-304 ready), Internet protocol (TCP/IP), and then gone

CodePudding user response:

A serial port turn principle can solve

CodePudding user response:

Remote control the power of the floor principle process is what