berry97
Newbie level 3
![Newbie level 3](/styles/images/ranks/alevel3.gif)
Hey all, I'm a somewhat 'fresh' engineer so apologies if I say any profound nonsense.
I'm working on a project that involves using three Omron temperature controllers (Omron E5CN-HV2M-500 AC100-240) with RS485 compatible option modules in tandem with three high-current power supplies to heat some cathode setups. Currently, I have constructed an isolated electrical chassis that I can put in an electronics rack in the lab to help with noise problems, and am looking to set up some wiring that will help me to communicate with my temperature controllers from a computer.
Ideally, my setup will involve a single panel-mounted receptacle that will connect to each of the three temperature controllers within the chassis using a Daisy-Chain topology. (I also have an RS485 Opto-Isolator that has an Ethernet input and output, which leads me to want to use an Ethernet cable for the chassis receptacle.) However, if I do use Ethernet ports, at some point I will have to convert back to individual shielded wires, as my temperature controllers use screw-wire connections, and are not Ethernet-cable compatible.
Could someone with a bit more experience with RS485 communication verify that my thought process is correct on this, and perhaps enlighten me as to why so many guides recommend using Daisy-Chain setups in RS485 connections?
Thanks.
I'm working on a project that involves using three Omron temperature controllers (Omron E5CN-HV2M-500 AC100-240) with RS485 compatible option modules in tandem with three high-current power supplies to heat some cathode setups. Currently, I have constructed an isolated electrical chassis that I can put in an electronics rack in the lab to help with noise problems, and am looking to set up some wiring that will help me to communicate with my temperature controllers from a computer.
Ideally, my setup will involve a single panel-mounted receptacle that will connect to each of the three temperature controllers within the chassis using a Daisy-Chain topology. (I also have an RS485 Opto-Isolator that has an Ethernet input and output, which leads me to want to use an Ethernet cable for the chassis receptacle.) However, if I do use Ethernet ports, at some point I will have to convert back to individual shielded wires, as my temperature controllers use screw-wire connections, and are not Ethernet-cable compatible.
Could someone with a bit more experience with RS485 communication verify that my thought process is correct on this, and perhaps enlighten me as to why so many guides recommend using Daisy-Chain setups in RS485 connections?
Thanks.