adccommunitymod (AutomationDirect) asked a question.
Program control of DL250 Port 2
Created Date: July 24,2000
Created By: Robert Kennedy
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I would like to be able to change Port 2 from K-Sequence to Modbus through the program. I have determined that V7655 holds the port operatating parameter..and that the value of 480 (BCD) is K-Sequence and 420 (BCD) is Modbus. I have tried to change this with ladder logic but although V7655 changes, the port itself does not seem to recognize the change. Has anyone ever tried this?
Created Date: July 24,2000
Created by: Robert Kennedy
I would like to be able to change Port 2 from K-Sequence to Modbus through the program. I have determined that V7655 holds the port operatating parameter..and that the value of 480 (BCD) is K-Sequence and 420 (BCD) is Modbus. I have tried to change this with ladder logic but although V7655 changes, the port itself does not seem to recognize the change. Has anyone ever tried this?
Created Date: July 24,2000
Created by: Russ
Robert,
As I recall, the port setup procedure requires that you write a "setup complete " value into another register before the new settings are applied to Port 2. I think you may want to try writing A55A into V7650 to do this, but I'm not 100% sure.
Good luck!
Regards,
Russ O 'Rourke
Created Date: July 25,2000
Created by: Mike McClanahan
I believe that you need to out a K0500 to V7657 to make the changes take effect.
Created Date: July 26,2000
Created by: Robert Kennedy
Thanks, the V7650 worked.
Created Date: July 26,2000
Created by: Robert Kennedy
oops...it was the V7657 that worked! sorry