Type:Logic ICs
Condition:New
Baby model:V30-0-BJ8
Optical isolation RS-485 interface standard MODBUS RTU protocol from the device can be used as PLC, MCGS, Kingview extended terminal access, 8 industrial 0 ~ 30V voltage input interface, voltage acquisition accuracy of 0.005V, the module embedded within the average Filter algorithm, so that the collected voltage is very smooth, the software can set the upper and lower voltage alarm value, 8 in any way after the voltage limit relay alarm output, 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
GND- power supply to the main board
V0~V7- 0~30V input voltage channel 0~7(in a public place with GND)
APhotoelectric isolation 485 signal A
BPhotoelectric isolation 485 signal B
COMPhotoelectric isolation 485 ground wire
BJS-Upper limit alarm normally open contact
BJS'- Upper limit alarm normally open contact
BJX- Lower limit alarm normally open contact
BJX'--- Lower limit alarm normally open contact
Parameter introduction
AD conversion accuracy: 12Voltage sampling precision: 0.005VVoltage sampling resolution : 0.001VDefault voltage sampling frequency : 5.4 times per secondMaximum sampling frequency :One hundred and fifty-sevenTimes per secondOutput relay capacity :1A/DC30V485 interface communication rate : 1200/2400/4800/9600/19200/38400/57600/115200bps adjustable485 interface communication parity bit : Non parity check / parity check Instructions on the voltage sampling frequency and the communication rate of the 485 interface:The voltage value of the channel to be read through the 485 interface is done inside the module.Average filtering algorithmThe purpose is to improve the stability of sampled data, but to do soSide effectIs to reduce the sampling frequency, so in order to deal with theThe stability of sampled data and the high speed of acquisition)This contradiction, on theThe average number of times the module is used to do the filtering algorithm.This parameter is open to the user, the userIf you want to collect the data to be more stable, and this parameter will be larger, if you want to do high-speed acquisition, the parameters of the smallerAt the same time, adjust the 485 communication rate and check the position of the authority is also open to the user, are using the following software configuration, as shown below:
