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Home Forum Configuring LinuxCNC ClassicLadder Classic Ladder commuication

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TOPIC: Classic Ladder commuication

Classic Ladder commuication 27 Jun 2011 23:20 #10911

  • new2cnc
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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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Re:Classic Ladder commuication 27 Jun 2011 23:29 #10912

  • cmorley
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CL use HAL to send signals to EMC
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Re:Classic Ladder commuication 28 Jun 2011 00:00 #10913

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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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Re:Classic Ladder commuication 28 Jun 2011 00:16 #10914

  • cmorley
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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 00:18 by cmorley.
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Re:Classic Ladder commuication 28 Jun 2011 00:27 #10915

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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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