Differences

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--- mycnc:independent_pulse_generator [2018/09/02 10:08] – skirillov
+++ mycnc:independent_pulse_generator [2019/09/23 11:25] – ivan
@@ Line 3: / Line 3: @@
 myCNC controllers Axis B can be switched to independent pulse generator output.
+<code>
+Independent Pulse Generator was added to firmware dated July 20, 2018.
+At the moment the firmware is available as the
+"Testing" version at the "Support" widget.
+</code>
@@ Line 11: / Line 17: @@
 ^ Register Name ^ Address ^ Description ^
-| GVAR_GENERATOR_FRQ_RAW | 8130 | Pulse Generator RAW frequency value, [units] \\ 1 unit = |
+| GVAR_GENERATOR_FRQ_RAW | 8130 | Pulse Generator RAW frequency value, [units] \\ 1 unit = 0.000736 Hz |
 | GVAR_GENERATOR_ACCEL | 8131 | Generator Acceleration, [units] \\ 1unit = 0.736 1/c2 |
 | GVAR_GENERATOR_FRQ_RATIO | 8132 | Generator Frequency Ratio |
@@ Line 105: / Line 111: @@
   * the Ratio set up
-It's supposed operator no need to change frequency acceleration and this setting is hidden from operator.
+It's supposed operator no need to change frequency acceleration and this setting is hidden from an  operator.
 The acceleration can be set up in the Software or Hardware PLC for example.
@@ Line 128: / Line 134: @@
+==== (Coolant) Pulse Generator control through Hardware PLC ====
+Function coolant_motor_start() is addaed to "mill-func.h" include file
-==== Low level CNC registers to control independent pulse generator ====
+<code C mill-func.h>
+coolant_motor_start()
+{
+  timer=10;do{timer--;}while(timer>0);
-This is for records only. Users don't have to use low-level access.
+  gvarset(8131,1000000); //acceleration
+  timer=10;do{timer--;}while(timer>0);
-^ Register Name ^ Address ^ Description ^
+  x=gvarget(8133);//get the speed (frequency)
-| EXT_GENERATOR_SPEED | 225 | Generator Frequency, [units] \\ 1 unit = 0.000736 Hz  |
+  k=gvarget(8132);//get the ratio
-| EXT_GENERATOR_ACCEL | 226 | Generator Acceleration, [units] \\ 1unit = 0.736 1/c2 |
+  x=x*k; //calculate the RAW frequency
+  gvarset(8130,x); //send the raw frequency to the register
+  timer=30;do{timer--;}while(timer>0); //wait a time for the frequency value to be delivered
+};
+</code>
+M08.plc procedure which starts the coolant motor would be
+<code C M08.plc>
+#include pins.h
+#include mill-func.h
+main()
+{
+  gvarset(7372,1);
+  portset(OUTPUT_FLOOD); //
+  coolant_motor_start();
+  exit(99);	//normal exit
+};
+</code>
+A procedure M09.plc to stop a coolant motor is simpler. Just need to write "0" to the raw frequency register.
+<code C M09.plc>
+#include pins.h
+main()
+{
+  gvarset(7373,0);
+  gvarset(7372,0);
+  portclr(OUTPUT_FLOOD);
+  portclr(OUTPUT_MIST);
+  gvarset(8130,0); //stop the pulse generator
+  timer=30;do{timer--;}while(timer>0); //wait a time for the frequency value to be delivered
+  exit(99);	//normal exit
+};
+</code>
+====Pulse Generator control for Spindle====
+It is possible to control the spindle speed through the pulse generator. The following code describes such a setup:
+<code C M03.plc>
+//Turn on Spindle clockwise
+#include pins.h
+#include vars.h
+main()
+{
+  command=PLC_MESSAGE_SPINDLE_SPEED_CHANGED;
+  parameter=eparam;
+  message=PLCCMD_REPLY_TO_MYCNC;
+  timer=0;do{timer++;}while (timer<10);//pause to push the message with Spindle Speed data
+  timer=0;
+  proc=plc_proc_spindle;
+  val=eparam;
+  if (val>0xfff) {val=0xfff;};
+  if (val<0) {val=0;};
+  dac01=val;
+  portclr(OUTPUT_CCW_SPINDLE);
+  portset(OUTPUT_SPINDLE);
+  gvarset(7370,1);//Spindle State
+  timer=30;do{timer--;}while (timer>0); //
+  gvarset(7371,eparam);//Spindle Speed Mirror register
+  //gvarset(7372,0);//Mist State
+  //gvarset(7373,0);//Flood State
+  gvarset(8131, 500000); timer=30;do{timer--;}while(timer>0); //Задержка на 30мс
+  k=671223;
+  freq=val*k; //calculate the RAW frequency
+  if (freq>515499348) {freq=515499348;};
+  gvarset(8130,freq); timer=30;do{timer--;}while(timer>0); //Задержка на 30мс
+  //delay after spindle started
+  timer=spindle_on_delay;
+  do{timer--;}while (timer>0); //delay for Spindle reach given speed
+  exit(99);	//normal exit
+};
+</code>
+<code C SPN.plc>
+#include vars.h
+//set Spindle speed control via DAC
+main()
+{
+  val=eparam;
+  dac01=val;	//send the value to the DAC register
+  //Change the Spindle State
+  gvarset(7371,eparam);  timer=30;do{timer--;}while (timer>0);  //30ms delay
+  s=gvarget(7370);
+  if (s!=0) //if spindle should be ON
+  {
+    k=671223;
+    freq=val*k; //calculate the RAW frequency
+    if (freq>515499348) {freq=515499348;};
+    gvarset(8130,freq); timer=30;do{timer--;}while(timer>0); //30ms delay
+  };
+  exit(99);//normal exit
+};
+</code>
+{{mycnc-spindle-pulse-dir-005.png}}
+{{mycnc-spindle-pulse-dir-006.png}}
+==== Low level CNC registers to control independent pulse generator ====
+This is for records only. Users don't have to use low-level access.
+^ Register Name ^ Address ^ Description ^
+| EXT_GENERATOR_SPEED | 225 | Generator Frequency, [units] \\ 1 unit = 0.000736 Hz  |
+| EXT_GENERATOR_ACCEL | 226 | Generator Acceleration, [units] \\ 1unit = 0.736 1/c2 |
 Independent pulse output can be used for -