How to split one RS485 network in two? 1

[lapsd]

I have one RS485 network with 21 devices (pH/ORP transmitter) linked with one converter RS232/RS485. Then, the information is sent to a computer, which has a program to calibrate, and compensation temperature of electrodes. I want to split that network in two. Do I need other converter and other comm port into computer? The program accepts more than one network.

Thanks.

 

[buzzp]

Yes you need another port and converter if you really want "two" seperate networks. Not sure why you want to do this but you can (if PC has another port).

 

[lapsd]

Buzzp,

This network could support up to 32 devices. However, the Refinery conditions is not ideal, and I have had significant amount of serial errors. Then, the idea to split the existente network (21 devices) in two.

Thanks for your help

Lapsd

 

[buzzp]

Carefully review your terminating resistors. This could be the origination of your problem. I believe B&B electronics has some good application notes about terminating resistors.