|
Welcome to the AutomationDirect Customer Forums.
These
forums are intended as a place for AutomationDirect customers to help one another,
share information, and share ideas.
The forums are not routinely monitored by AutomationDirect
Technical Support staff. While staff members may answer questions occasionally,
for a prompt response to a problem please contact Technical Support directly
at: 1(800) 633-0405 or (770) 844-4200 or e-mail
Tech Support.
|
#1
11-03-2009, 12:29 PM
|
|||
|
|||
|
RS-485 "network"
I need to set up an RS-485 network with 2 devices and a DL260. Physically, they are all located in the same cabinet. The 2 devices have a DB9 connector, and the DL260 has the high density 15 pin connector.
What is the best way to network them together? Will 3 pigtails work? Skip the 120 ohm resistors since there is no 120 ohm cable? Should I use a CMA15 and try to find somebody who makes a CMA9? Any thoughts on the best way to do this are greatly appreciated. Thanks! 
|
|
#3
11-03-2009, 05:24 PM
|
|||
|
|||
|
emabond, a compact installation, but tedious to make, would be to use (2) pigtails and a solder (or crimp) D-sub connector. Use a 15-pin HD pigtail for the PLC, and go the the 1st device and solder the 15-pin HD and a 9-pin pigtail to a solder (or crimp) D-sub connector. This would create your daisy-chain configuration. Yes, you can skip the end-resistors because your length is short. (3 pigtails would not give you a daisy-chain configuration.)
If you find a "CMA9", let me know. I have not be able to find this. L-com carries a 9pin/terminal-block adapter, but it is bulky and too big to hang on a port.
|
 |
| Thread Tools | |
| Display Modes | Rate This Thread |
|
|
Linear Mode
