DH485 Network

[02js4130]

Hi,

i am trying to create an DH485 netwrok which will consist of 2 ML1500 using ACi units for data acquisition back to a pc. i understand how the PLCS join using the AIC , My question is how is the cabling done to connect to the PC and what protocol is used? also how are the node addresses applied?

Thanks in advance

 

[geniusintraining]

Try a 1747-CP3

See chapter 3 https://literature.rockwellautomation.com/idc/groups/literature/documents/um/1761-um004_-en-p.pdf

 

[02js4130]

ok thank you, so from the final node i use RS232 cable and DF1 protocol back to the pc?

 

[Mickey]

ok thank you, so from the final node i use RS232 cable and DF1 protocol back to the pc?

The protocol of your ML1500's are set to DH485 you will need to use a DH485 driver (1747-PIC/AIC Driver) in RSLinx. The AIC's are not a protocol converter, just a interface converter.
Does your PC have a real serial port (9 pin port) if not then the 1747-PIC/AIC driver will not work. You will need a 1747-UIC (USB to serial converter)
it is a interface and protocol converter. You can then use the DF1 driver.

See pdf

 

[geniusintraining]

.....

Hey Mickey! just noticed you passed of 10k on the post, congrats and thanks for the help over the years!

 

[Mickey]

Thank you.