N
Hey there,
I am working on a design of smart home system mainly based on Modbus relay modules.
The house have 3 floors
1. Basement
2. Ground floor
3. First floor
The main electrical board is on ground floor. I would like to understand the following:
1. What is the right way to chain all RS 485 devices assuming that the master located in Ground floor.
Should I chain the first device on the basement then chain to the next device on the ground floor?
I did not fully understand the right way to chain devices
2. Would CAT 6 cable is a good solution for wire type? and other recommended cable I.E knx communication line?
3. Where is the right location for the termination resistor (only at last one i assume)
4. can i use bus connection for the Modbus? have this currently but have lots of errors not sure if due to cable or connection.
5.What is the right way to chain? use wire terminal with two wires inside is ok?
6. in addition to relay modules, i have some power meters, sensors and so on. Should i place the number to just follow the relay modules or it is right to slip to groups? I.E 1-50, for first 20 modules, (30 empty), 51-80, 81-110... etc?
I am working on a design of smart home system mainly based on Modbus relay modules.
The house have 3 floors
1. Basement
2. Ground floor
3. First floor
The main electrical board is on ground floor. I would like to understand the following:
1. What is the right way to chain all RS 485 devices assuming that the master located in Ground floor.
Should I chain the first device on the basement then chain to the next device on the ground floor?
I did not fully understand the right way to chain devices
2. Would CAT 6 cable is a good solution for wire type? and other recommended cable I.E knx communication line?
3. Where is the right location for the termination resistor (only at last one i assume)
4. can i use bus connection for the Modbus? have this currently but have lots of errors not sure if due to cable or connection.
5.What is the right way to chain? use wire terminal with two wires inside is ok?
6. in addition to relay modules, i have some power meters, sensors and so on. Should i place the number to just follow the relay modules or it is right to slip to groups? I.E 1-50, for first 20 modules, (30 empty), 51-80, 81-110... etc?