0-10V voltage to 485 analog signal acquisition module RTU MODBUS protocol photoelectric isolation communication

Baby model:V10-0-INx

Optical isolation RS-485 interface standard MODBUS RTU protocol from the device can be used as PLC, MCGS, Kingview expansion terminal access, 4/12/32-way industrial DC 0 ~ 10V voltage input interface, voltage acquisition accuracy of 0.001V, Module embedded within the average filtering algorithm, so that the collected voltage is very smooth, 485 communication rate and parity can be modified to modify the sampling frequency, the module is stable.

aboutPhotoelectric isolation485 communication instructions

In most applications, the 485 communication does not do the photoelectric isolation is not too big problem, butIn the industrial field,In particular, the acquisition of high precision analog (current, voltage)In the case, the interference on the main board of the 485 communication lines on the motherboard will cause a greater impact on the work, will lead to a large collection of data into a relatively large,In order to meet the requirements of the industrial field on the stability and communication stability of the module,This module regardless of cost, high speed optocoupler and isolated DCDC power module, the photoelectric isolation of 485 communication lines, completely solve the interference on the motherboard power communication line 485,Some modules on the market communication interface is not to do the photoelectric isolation, if you use this product to collect the data is not stable, you first consider whether the communication interface does not do the reasons for optoelectronic isolation!Simply say: photoelectric isolation, is better than not isolated!

Before buying, please pay attention to:If you want to get a stable collection of data, the 485 communication interface must be photoelectric isolation, you buy the product does not buy my store is not important, but kindly remind you that this indicator is very important!

Connection description

24V- the main board is working,Range: DC12V ~ DC24V,Recommend 12V

GND- power supply to the main board

Vx- DC0~10V input voltage channel(reference to GND)

APhotoelectric isolation 485 signal A

BPhotoelectric isolation 485 signal B

VSS Photoelectric isolation 485 ground wire

Parameter introduction