Hello, first of all sorry about my english.
I am in the middle of a project with arduino and a PLC 1200 siemens.
I want transfer some data FROM the PLC (data type, int) to my arduino UNO, after this, the data will be sending to my website, (hosted in WEB00).
I can split the code in two parts:
Comunication between PLC and Arduino.
Comunication Arduino Web Server.
I send the data to the website with a POST request.
The code below works when I want to make the POST request, but i need to use "ModbusIP mb;" and when I use this line in the code, the POST request doesn't work.
I don't have any idea where is the issue. The only thing I have realized is when I add ModbusIP mb;"
/ your variable
#include <EtherCard.h>
#include <Modbus.h>
#include <ModbusIP_ENC28J60.h>
const char website[] PROGMEM = "website";
#define PATH "phpfile"
#define VARIABLE "var"
// ethernet interface mac address, must be unique on the LAN
static byte session;
byte mymac[] = { 0x74,0x69,0x69,0x2D,0x30,0x31 };
byte Ethernet::buffer[700];
uint32_t timer;
Stash stash;
ModbusIP mb;
void setup () {
Serial.begin(57600);
Serial.println("\n[webClient]");
if (ether.begin(Ethernet::buffer[700], mymac) == 0)
Serial.println( "Failed to access Ethernet controller");
if (!ether.dhcpSetup())
Serial.println("DHCP failed");
ether.printIp("IP: ", ether.myip);
ether.printIp("GW: ", ether.gwip);
ether.printIp("DNS: ", ether.dnsip);
if (!ether.dnsLookup(website))
Serial.println("DNS failed");
ether.printIp("SRV: ", ether.hisip);
}
void loop () {
//Serial.println("Envio de datos");
ether.packetLoop(ether.packetReceive());
if (millis() > timer) {
timer = millis() + 10000;
byte sd = stash.create();
stash.print("serial=");
stash.print(VARIABLE);
stash.print("&temperature=");
stash.print(VARIABLE);
stash.print("&action=Submit");
stash.save();
// generate the header with payload - note that the stash size is used,
// and that a "stash descriptor" is passed in as argument using "$H"
Stash::prepare(PSTR("POST http://$F/$F HTTP/1.0" "\r\n"
"Host: $F" "\r\n"
"Content-Length: $D" "\r\n"
"Content-Type: application/x-www-form-urlencoded" "\r\n"
"\r\n"
"$H"),
website, PSTR(PATH), website, stash.size(), sd);
// send the packet - this also releases all stash buffers once done
}
session = ether.tcpSend();
ether.packetLoop(ether.packetReceive());
delay(1000);
}