it is now working with two seperate solar charge controllers with two mx485 software serial ports :)

arduino-max485-epever-json-serial.ino

@@ -59,7 +59,7 @@
   DI => 9
   DE => 5
   RE => 4
-  RO => 6
+  RO => 8
 
   TRACER => MAX485
   blue => B
@@ -77,7 +77,7 @@
 bool twoController = true;
 
 SoftwareSerial myserial(10, 11); // RX, TX
-SoftwareSerial myserial2(6, 9); // RX, TX
+SoftwareSerial myserial2(8, 9); // RX, TX
 
 
 
@@ -105,6 +105,7 @@ float stats_today_pv_volt_min2, stats_today_pv_volt_max2;
 
 bool rs485DataReceived = true;
 bool loadPoweredOn = true;
+bool loadPoweredOn2 = true;
 
 // uint8_t is short hand for a byte or an integer of length 8 bits
 uint8_t result;
@@ -166,23 +167,30 @@ void setup()
 
   // Modbus slave ID 1
   node.begin(1, myserial);
+  
   if(twoController == true) {
     node2.begin(1, myserial2);
   }
+  
   // Callbacks allow us to configure the RS485 transceiver correctly
   node.preTransmission(preTransmission);
   node.postTransmission(postTransmission);
+  
   if(twoController == true) {
     node2.preTransmission(preTransmission2);
     node2.postTransmission(postTransmission2);
   }
+  
 }
 
 //was true
 bool state = true;
+int countRound = 0;
 
 void loop()
 {
+  myserial.listen();
+  // I have some issues sometimes getting values and maybe some delay helps IDK
   AddressRegistry_3100();
   AddressRegistry_3106();
   AddressRegistry_310D();
@@ -208,30 +216,37 @@ void loop()
   jsonOut["1"]["loadPoweredOn"] = loadPoweredOn;
 
   if(twoController == true) {
-    jsonOut["2"]["pvpower"] = pvpower;
-    jsonOut["2"]["pvcurrent"] = pvcurrent;
-    jsonOut["2"]["pvvoltage"] = pvvoltage;
-    jsonOut["2"]["lcurrent"] = lcurrent;
-    jsonOut["2"]["pvpower"] = pvpower;
-    jsonOut["2"]["lpower"] = lpower;
-    jsonOut["2"]["pvpower"] = pvpower;
-    jsonOut["2"]["btemp"] = btemp;
-    jsonOut["2"]["bvoltage"] = bvoltage;
-    jsonOut["2"]["bremaining"] = bremaining;
-    jsonOut["2"]["ctemp"] = ctemp;
-    jsonOut["2"]["battChargeCurrent"] = battChargeCurrent;
-    jsonOut["2"]["battChargePower"] = battChargePower;
-    jsonOut["2"]["battOverallCurrent"] = battOverallCurrent;
-    jsonOut["2"]["loadPoweredOn"] = loadPoweredOn;
+    jsonOut["2"]["pvpower"] = pvpower2;
+    jsonOut["2"]["pvcurrent"] = pvcurrent2;
+    jsonOut["2"]["pvvoltage"] = pvvoltage2;
+    jsonOut["2"]["lcurrent"] = lcurrent2;
+    jsonOut["2"]["pvpower"] = pvpower2;
+    jsonOut["2"]["lpower"] = lpower2;
+    jsonOut["2"]["pvpower"] = pvpower2;
+    jsonOut["2"]["btemp"] = btemp2;
+    jsonOut["2"]["bvoltage"] = bvoltage2;
+    jsonOut["2"]["bremaining"] = bremaining2;
+    jsonOut["2"]["ctemp"] = ctemp2;
+    jsonOut["2"]["battChargeCurrent"] = battChargeCurrent2;
+    jsonOut["2"]["battChargePower"] = battChargePower2;
+    jsonOut["2"]["battOverallCurrent"] = battOverallCurrent2;
+    jsonOut["2"]["loadPoweredOn"] = loadPoweredOn2;
   }
+  
   serializeJson(jsonOut, Serial);
-  Serial.println();
+  //Serial.println();
+  //Serial.write( '\r' );  // Carriage Return
+  Serial.write( '\n' );  // Carriage Return
+  Serial.println(countRound);
+  countRound++;
   delay(1000);
 }
 
 
 // AddressRegistry from https://github.com/Bettapro/Solar-Tracer-Blynk-V3
   void AddressRegistry_3100() {
+    // listen to the first software serial port
+    myserial.listen();
     result = node.readInputRegisters(0x3100, 6);
 
     if (result == node.ku8MBSuccess)  {
@@ -249,6 +264,8 @@ void loop()
     }
 
     if(twoController == true) {
+      // listen to the first software serial port
+      myserial2.listen();
       result2 = node2.readInputRegisters(0x3100, 6);    
 
         if (result2 == node2.ku8MBSuccess)  {
@@ -265,10 +282,13 @@ void loop()
 
       }
     }
+    
   }
 
   void AddressRegistry_3106()
   {
+    // listen to the first software serial port
+    myserial.listen();
     result = node.readInputRegisters(0x3106, 2);
 
     if (result == node.ku8MBSuccess) {
@@ -276,16 +296,21 @@ void loop()
     }
 
     if(twoController == true) {
+      // listen to the first software serial port
+      myserial2.listen();
       result2 = node2.readInputRegisters(0x3106, 2);
 
       if (result2 == node2.ku8MBSuccess) {
         battChargePower2 = (node2.getResponseBuffer(0x00) | node2.getResponseBuffer(0x01) << 16)  / 100.0f;
       }
     }
+    
   }
 
   void AddressRegistry_310D() 
   {
+    // listen to the first software serial port
+    myserial.listen();
     result = node.readInputRegisters(0x310D, 3);
 
     if (result == node.ku8MBSuccess) {
@@ -302,7 +327,8 @@ void loop()
     } 
 
     if(twoController == true) {
-
+      // listen to the first software serial port
+      myserial2.listen();
       result2 = node2.readInputRegisters(0x310D, 3);
 
       if (result2 == node2.ku8MBSuccess) {
@@ -318,9 +344,12 @@ void loop()
         //Serial.println("Read register 0x310D failed!");
       }    
     }
+    
   } 
 
   void AddressRegistry_311A() {
+    // listen to the first software serial port
+    myserial.listen();
     result = node.readInputRegisters(0x311A, 2);
    
     if (result == node.ku8MBSuccess) {    
@@ -337,6 +366,8 @@ void loop()
     }
 
   if(twoController == true) {
+    // listen to the first software serial port
+    myserial2.listen();
     result2 = node2.readInputRegisters(0x311A, 2);
    
       if (result2 == node2.ku8MBSuccess) {    
@@ -352,9 +383,12 @@ void loop()
         //Serial.println("Read register 0x311A failed!");
       }    
    }
+   
  }
 
   void AddressRegistry_331B() {
+    // listen to the first software serial port
+    myserial.listen();
     result = node.readInputRegisters(0x331B, 2);
     
     if (result == node.ku8MBSuccess) {
@@ -374,6 +408,8 @@ void loop()
     }
    
     if(twoController == true) {
+      // listen to the first software serial port
+      myserial2.listen();
       result2 = node2.readInputRegisters(0x331B, 2);
     
       if (result2 == node2.ku8MBSuccess) {
@@ -392,4 +428,5 @@ void loop()
         //Serial.println("Read register 0x331B failed!");
       }
     }
+    
   }