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#include <Ethernet.h>

#include <P1AM.h>

#include <ArduinoRS485.h> // ArduinoModbus depends on the ArduinoRS485 library

#include <ArduinoModbus.h>

byte mac[] = { //Use the �Reserved MAC� printed on the right-side label of your P1AM-ETH.

 0x60, 0x52, 0xD0, 0x07, 0x42, 0xC7

};

IPAddress ip(192, 168, 0, 177); //IP Address of the P1AM-ETH module.

EthernetServer server(502);

ModbusTCPServer modbusTCPServer;

bool cmore_button = false; // state of cmore button

int cycleCount; 

void setup() {

 Serial.begin(115200);

 Serial.println("Modbus TCP Server and Module I/O Example");

 while (!P1.init()) {} ; //Wait for P1 Modules to Sign on

 Ethernet.begin(mac, ip);

 server.begin();

 if (!modbusTCPServer.begin()) {

  Serial.println("Failed to start Modbus TCP Server!");

  while (1);

 }

 modbusTCPServer.configureCoils(0x00, 16); //setup 16 coils starting at address 0

}

void loop() {

static unsigned long counter;

 EthernetClient client = server.available(); //listen for incoming clients

 if (client) {

  if (client.available()) {

   Serial.println("Got Client");

   modbusTCPServer.accept(client); //accept connection

   modbusTCPServer.poll();// service any Modbus TCP requests, while client connected

   cmore_button = modbusTCPServer.coilRead(1); // Read coil 1, coilRead adds the function code

   if(cmore_button == TRUE){

    P1.writeDiscrete(cmore_button, 2,2); 

   }

   for(int i = 0; i <= 1; ++i){

    counter++; 

   }

   if (client && !client.connected()) {

    client.stop();

   }

  }

 }

}