Classic Ladder commuication

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28 Jun 2011 06:20 #10911 by new2cnc
Hi guys,

Please could tell me how classic ladder communicate with the emc. i know this is the dumb question...but i want know the answer badly..

thank you

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28 Jun 2011 06:29 #10912 by cmorley
CL use HAL to send signals to EMC

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28 Jun 2011 07:00 #10913 by new2cnc
Thanks cmorley, I have one more question....is it possible to take out HAL from emc source code...I mean HAL is separate application like rs274...

thank u.

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28 Jun 2011 07:16 - 28 Jun 2011 07:18 #10914 by cmorley
I am no HAl expert but Yes it's possible.
But there is little motivation to do it.
HAL requires the realtime kernel to control any real device so you must untangle that from the make file too.
Why would you want to?
By the way classicladder is actually a separate project. The version EMC uses 7.124 and the most current is 9.0 I think.
The parent project does not use HAL to communicate, it drives the parallel port directly or can use modbus
Last edit: 28 Jun 2011 07:18 by cmorley.

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28 Jun 2011 07:27 #10915 by new2cnc
In my company we doing the project cnc machine controller for our client,

so my part is to do plc and real timer kernel for the controller....i dont have any idea about the plc and cnc...so found emc is very helpul for make my part..

that's why i asking you guys regarding classicladder and emc , and how its are communicates...but i finished the real time kernel part.....

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