adccommunitymod (AutomationDirect) asked a question.
Direct memory access to DL05/06
Created Date: July 19,2004
Created By: tmkirkland
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Trying something new for me. I have a project where I need to write and read directly from a PC based API to the PLC. The API is handling the transfer of data (commands and responses) from a customer's window based program to the PLC. The PLC application is simple and need only an input byte, output byte and 2 variable words. But... I'm at a lost as the RX and WX protocol. Anyone have experience with this? Tony
Created Date: July 19,2004
Created by: bcarlton
If you are 'rolling your own ' check out this reference http://www.automationdirect.com/static/manuals/dadnet/dadnet.html for the manual. Otherwise something like the 'KEPDirect for PLC ' would be in order.
Created Date: July 19,2004
Created by: GKiser
If you are writing your own and plan on using Ethernet, then you can use our Ethernet SDK. It's free! You can download it here:
http://www.hosteng.com/Ethernet%20SDK/Ethernet%20SDK.htm
Greg Kiser
Host Engineering, Inc.
Created Date: July 30,2004
Created by: chris.zeman
I downloaded the Ethernet SDK and am currently working with it figuring out how to use it in my application. Once I have it all figured out I'll be in great shape. I purchased ActiveX DLLs from Phil Covington. I won't be buying anything from him anymore. His lack of documentation and failure to respond to simple questions via email really... well, I'll keep the profanity to myself. I did receive help and sample files from another individual who helped me understand how to use Phil's DLLs, but I just won't support someone with cruddy customer service.
It's great that Host Engineering offers these files to us. It helps those of us who are on budgetary constraints and makes it a lot easier for us to deploy our applications.
Chris
Created Date: July 19,2004
Created by: tmkirkland
Trying something new for me. I have a project where I need to write and read directly from a PC based API to the PLC. The API is handling the transfer of data (commands and responses) from a customer's window based program to the PLC. The PLC application is simple and need only an input byte, output byte and 2 variable words. But... I'm at a lost as the RX and WX protocol. Anyone have experience with this?
Tony