Reuse signal in postgui hal file
21 Oct 2023 21:44 #283461
by Guglielmi
Reuse signal in postgui hal file was created by Guglielmi
Hello,
I would like to show the spindle frequency on my HMI.
The frequency is read through modbus and it's linked already to a signal "actual_speed", I use it to perform some check in ladder..
Well, in postgui, I would like to use the same signal and link it to a HALLabel.
It's possible to reuse the signal defined in the HAL file into postgui HAL?
Should I copy it in a ladder pin?
Thanks
Bye
Andrea
I would like to show the spindle frequency on my HMI.
The frequency is read through modbus and it's linked already to a signal "actual_speed", I use it to perform some check in ladder..
Well, in postgui, I would like to use the same signal and link it to a HALLabel.
It's possible to reuse the signal defined in the HAL file into postgui HAL?
Should I copy it in a ladder pin?
Thanks
Bye
Andrea
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22 Oct 2023 00:29 #283469
by tommylight
Replied by tommylight on topic Reuse signal in postgui hal file
Probably yes, give it a try, LinuxCNC is pretty good at pointing out errors.It's possible to reuse the signal defined in the HAL file into postgui HAL?
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22 Oct 2023 07:06 #283483
by Guglielmi
Replied by Guglielmi on topic Reuse signal in postgui hal file
Of course I tried a lot before write.. so just reusing the signal doesn't work, in postgui raises an error for signal not existing, I tried also to use a classicladder variable even it's not a nice solution without find a way.
I searched a lot in HAL documentation and on the web looking for a kind of syntax to define signal global.. nothing.
I had the idea to move all related to spindle frequency in the postgui.. maybe in this way it works but I'm also curious to know if it's possible.
So I wrote the post.
Code in the mail HAL:
Code in postgui HAL:
It doesn't work, error:
hmi_postgui.hal:31: Pin 'classicladder.0.floatin-00' was already linked to signal 'actual_speed'
but again here I'm trying to use floatin-00, I prefer to use actual_speed directly if possible.
Thanks
Andrea
I searched a lot in HAL documentation and on the web looking for a kind of syntax to define signal global.. nothing.
I had the idea to move all related to spindle frequency in the postgui.. maybe in this way it works but I'm also curious to know if it's possible.
So I wrote the post.
Code in the mail HAL:
net speed_in conv-s32-float.0.in <= classicladder.0.s32out-03
net actual_speed conv-s32-float.0.out => spindle.0.speed-in
net actual_speed => near.0.in2 classicladder.0.floatin-00Code in postgui HAL:
net SpindleFreq classicladder.0.floatin-00 => AG_CncHmi.lblFreqIt doesn't work, error:
hmi_postgui.hal:31: Pin 'classicladder.0.floatin-00' was already linked to signal 'actual_speed'
but again here I'm trying to use floatin-00, I prefer to use actual_speed directly if possible.
Thanks
Andrea
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22 Oct 2023 07:48 #283484
by chris@cnc
Does this work?
Replied by chris@cnc on topic Reuse signal in postgui hal file
net actual_speed => near.0.in2 classicladder.0.floatin-00 AG_CncHmi.lblFreq
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22 Oct 2023 07:55 #283485
by Guglielmi
Replied by Guglielmi on topic Reuse signal in postgui hal file
The problem is that AG_CncHmi.lblFreq is a label of my HMI so it should be handled in postgui,
this line of code is in the main HAL ...
this line of code is in the main HAL ...
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22 Oct 2023 08:31 #283488
by rodw
Alternatively, use this in your postgui
Replied by rodw on topic Reuse signal in postgui hal file
That is not a problem. Using a postgui file just changes the order of hal loading. Its still updated in real time, but the gui may not refresh immediately.The problem is that AG_CncHmi.lblFreq is a label of my HMI so it should be handled in postgui,
this line of code is in the main HAL ...
Alternatively, use this in your postgui
net actual_speed => AG_CncHmi.lblFreq
The following user(s) said Thank You: Guglielmi
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22 Oct 2023 11:31 #283492
by Guglielmi
Replied by Guglielmi on topic Reuse signal in postgui hal file
Thanks for answer.
the order of call is the correct one if I'm not wrong:
So the postgui is called after.. the order you mean the order inside the ini, right?
I tried your line of code and it works.. incredible because it was the first I try.. or most probably the mistake is
that I tried with:
maybe it is considered differenty.. I got this error:
hmi_postgui.hal:27: Pin 'actual_speed' does not exist
that confused my.. "does not exist" it's not really true. It works just removing SpindleFreq signal..
Perfect! Tanks a lot rodw!
the order of call is the correct one if I'm not wrong:
HALFILE = cnc3040.hal
# list of halcmd commands to execute
# commands are executed in the order in which they appear
#HALCMD = save neta
# Single file that is executed after the GUI has started. Only supported by
# AXIS at this time (only AXIS creates a HAL component of its own)
POSTGUI_HALFILE = hmi_postgui.halSo the postgui is called after.. the order you mean the order inside the ini, right?
I tried your line of code and it works.. incredible because it was the first I try.. or most probably the mistake is
that I tried with:
net SpindleFreq actual_speed => AG_CncHmi.lblFreqmaybe it is considered differenty.. I got this error:
hmi_postgui.hal:27: Pin 'actual_speed' does not exist
that confused my.. "does not exist" it's not really true. It works just removing SpindleFreq signal..
Perfect! Tanks a lot rodw!
The following user(s) said Thank You: rodw
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