#Congex visionpro communication via modbus rtu
This a cheaper of visionpro communication via modbus rtu.
Please note that the switching time is more than 50ms due to serialport has low baud rate.
If you require less time, you could seek to higher communinication rate, such as ethercat.
#Install
npm i cog-vprtu
#Using
Before you start, you need setting up cognex visionpro the result is bool(ture/false).
const vprtu = require('cog-vprtu')
vprtu.modbusrtu_on(station_num,switch_num)
vprtu.modbusrtu_off(station_num,switch_num)