MDI command during feedhold
11 Aug 2021 16:01 #217555
by rajsekhar
MDI command during feedhold was created by rajsekhar
Hello everyone, I am in process of building Oxyfuel cutting machine with linuxcnc.
Now, external feed hold is configured which again automatically activated in case of power failure via relay. However, as power resume, I need to execute torch on, preheat delay, piercing and then feed resume. It is very convenient to go for subroutine for entire restart. Hence, MDI command execution is very helpful during feedhold.
But how that is possible?
Now, external feed hold is configured which again automatically activated in case of power failure via relay. However, as power resume, I need to execute torch on, preheat delay, piercing and then feed resume. It is very convenient to go for subroutine for entire restart. Hence, MDI command execution is very helpful during feedhold.
But how that is possible?
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16 Aug 2021 09:45 #217867
by andypugh
Replied by andypugh on topic MDI command during feedhold
I don't think that it is possible to MDI during a feed hold. Basically MDI and Auto are different modes.
You need to run the MDI command, then re-start the G-code from a specific line.
If the machine stopped half-way through a long move then there is no way to start from that point, unfortunately. An inconvenient way to get round this would be to note the stopped position and edit the G-code to add a move starting from that point.
You need to run the MDI command, then re-start the G-code from a specific line.
If the machine stopped half-way through a long move then there is no way to start from that point, unfortunately. An inconvenient way to get round this would be to note the stopped position and edit the G-code to add a move starting from that point.
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01 Sep 2021 03:52 #219305
by rajsekhar
Replied by rajsekhar on topic MDI command during feedhold
I am happy to convey that my machine is running from the same point after power resumes automatically..
Basically did some logic control in classic ladder.. and it is running
Basically did some logic control in classic ladder.. and it is running
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