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--- mycnc:modbus_setup [2019/09/12 10:40] – ivan
+++ mycnc:modbus_setup [2020/01/27 11:42] – ivan
@@ Line 56: / Line 56: @@
 ====Modbus Devices available====
 The detailed description of the available Modbus devices is located at the [[mycnc:modbus_devices|Modbus Devices]] page.
+====Sample M03 procedure for Spindle ON through Modbus====
+++++ Expand M03 code |
+<code>#include pins.h
+#include vars.h
+#define command   var00
+#define parameter var01
+// =======================================================================
+//SPINDLE_ON_CW_VALUE  should be redefined according to VFD specification
+#define SPINDLE_ON_CW_VALUE   12345
+// =======================================================================
+main()
+{
+  proc=plc_proc_spindle;
+  timer=0;
+  val=eparam;
+  message=PLCCMD_MODBUS_SPINDLE_CMD;
+  command=SPINDLE_ON_CW_VALUE;
+  parameter=SPINDLE_ON_CW_VALUE;
+  timer=10; do{timer--;} while (timer>0);
+  message=PLCCMD_MODBUS_SPINDLE_SPEED;
+  command=val;
+  parameter=val;
+  timer=30; do { timer--; } while (timer>0);
+  gvarset(7370,1);   //Spindle State
+  timer=10; do { timer--; } while (timer>0);
+  gvarset(7371,val); //Spindle Speed Mirror register
+  timer=10; do { timer--; } while (timer>0);
+  //delay after spindle started
+  timeout=timer+spindle_on_delay;
+  do{timer++;}while (timer<timeout); //delay for Spindle reach given speed
+  exit(99);	//normal exit
+}; </code>
+++++
+This M03 procedure can be found by going into Settings > Config > PLC > Hardware PLC Templates > Mill (Modbus): Spindle CW Turn-ON.
+  * As can be seen in the sample code, the ''timeout'' delay is set to the spindle ON delay. This spindle ON delay is specified in the User Settings:
+{{:mycnc:modbus-setup-002-timeout-delay.png}}