Arduino-Modbus-RTU-Slave

Arduino Modbus RTU Slave

ArduinoModbusRTUSlave_example/ArduinoModbusRTUSlave.ino

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+/*
+ *  More info      : http://pdacontrolen.com
+ *  Mas informacion: http://pdacontroles.com
+ *  Channel  Youtube https://www.youtube.com/c/JhonValenciaPDAcontrol/videos   
+ *
+ *
+ *
+ *  Modified by Trialcommand
+ *   More Tutorials: 
+ *   Website http://trialcommand.com
+ *	 In English: http://en.trialcommand.com
+ *	 En Español: http://en.trialcommand.com  
+ *   
+ */
+
+#include <modbus.h>
+#include <modbusDevice.h>
+#include <modbusRegBank.h>
+#include <modbusSlave.h>
+
+
+modbusDevice regBank;
+modbusSlave slave;
+
+void setup()
+{   
+
+//Assign the modbus device ID.  
+  regBank.setId(1);
+
+
+// Holding registers
+
+  regBank.add(40001);  
+  regBank.add(40002);  
+  regBank.add(40003);  
+  regBank.add(40004);  
+  regBank.add(40005);  
+  regBank.add(40006);  
+  regBank.add(40007);  
+  regBank.add(40008);  
+  regBank.add(40009);  
+  regBank.add(40010);  
+
+  regBank.add(40011);  
+  regBank.add(40012);  
+  regBank.add(40013);  
+  regBank.add(40014);  
+  regBank.add(40015);  
+  regBank.add(40016);  
+  regBank.add(40017);  
+  regBank.add(40018);  
+  regBank.add(40019);  
+  regBank.add(40020);  
+
+  slave._device = &regBank;  
+
+  Serial.begin(9600);
+  delay(100);
+// Initialize the serial port for coms at 9600 baud  
+  slave.setBaud(9600);
+  delay(100);
+  Serial.println("Connected "); 
+  Serial.println("Modbus RTU Slave Online");  
+}
+
+void loop()
+{    
+
+///////// Holding Register [0] A [9]  =  10 Holding  Registers Lectura
+/////     Holding Register [0] A [9]   =  10 Holding Registers Reading  
+
+
+     int Mdelay = 5; // microdelay 
+
+
+     Serial.print("[0] ");
+     Serial.println(regBank.get(40000)); 
+     delay(Mdelay);
+     Serial.print("[1] ");
+     Serial.println(regBank.get(40001));
+     delay(Mdelay);
+     Serial.print("[2] ");
+     Serial.println(regBank.get(40002));
+     delay(Mdelay);
+     Serial.print("[3] ");
+     Serial.println(regBank.get(40003));
+     delay(Mdelay);
+     Serial.print("[4] ");
+     Serial.println(regBank.get(40004));
+     delay(Mdelay);
+     Serial.print("[5] ");
+     Serial.println(regBank.get(40005));
+     delay(Mdelay);
+     Serial.print("[6] ");
+     Serial.println(regBank.get(40006));
+     delay(Mdelay);
+     Serial.print("[7] ");
+     Serial.println(regBank.get(40007));
+     delay(Mdelay);
+     Serial.print("[8] ");
+     Serial.println(regBank.get(40008));        
+     delay(Mdelay);
+     Serial.print("[9] ");
+     Serial.println(regBank.get(40009));        
+     delay(Mdelay);
+
+   ///////// Holding Register [10] A [19] = 10 Holding Registers Escritura
+   ///////// Holding Register [10] A [19] = 10 Holding Registers Writing
+
+
+    regBank.set(40010,  random(1, 100));        
+    regBank.set(40011,  random(1, 100));        
+    regBank.set(40012,  random(1, 100));              
+    regBank.set(40013,  random(1, 100));              
+    regBank.set(40014,  random(1, 100)); 
+    regBank.set(40015,  random(1, 100));        
+    regBank.set(40016,  random(1, 100));        
+    regBank.set(40017,  random(1, 100));              
+    regBank.set(40018,  random(1, 100));              
+    regBank.set(40019,  random(1, 100)); 
+
+
+     slave.run();  
+
+}