10-05-2024, 02:29 PM
(This post was last modified: 10-05-2024, 02:30 PM by huntleight.)
(10-04-2024, 11:59 PM)admin Wrote: i don't understand your means. if you can draw a photo will be better.
I want to be my kc868 as a slave. Because i will be added to a modbus bus. In other words, an HMI will send me data and read my data.
Q1) Is this possible with Serial library(Serial.print, Serial.read, ...) ? ( I think it is )
Q2) How do I make this communication (HMI and KC868) ?
Q3) How do I determine my slave number?
Q4) How do I know which data HMI/PLC want to read or change ?