YVN_Group

dh485 PC to SLC5 using DH485 protocol

2 posts in this topic

Thank you for allowing me post here.

I have a PLC SLC5/04, I usually connect to PC using DF1 (RS232 port). But recently, I had to use DH485 to connect to a new touchscreen. 

Now, After setting RS232 port to DH485( In Channel Configuration/Channel 0-System). I couldn't connect to PC using RS232 port.

In RS Linx, I tried both "DH485 UIC devices" driver  and "RS-232 DF1 devices" driver, but the PC couldn't recognize SLC5/04.

Did I do something wrong?

 

Edited by YVN_Group

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I'm guessing you are using a USB to RS232 adapter?  If so you won't be able to go online with the SLC 5/04 bottom port after switching to DH485 without a 1747-UIC or clearing the PLC program.

Here is how to clear the program from your PLC

https://www.theautomationstore.com/clearing-memory-from-an-allen-bradley-slc-500-including-passwords/

And here is a 1747-UIC

https://www.theautomationstore.com/allen-bradley-slc-500-programming-cable-usb-to-dh485-1747-uic/

 

 

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