Hallo zusammen,
ich versuche Daten aus dem VM-Speicher einer Logo 0BA8 auszulesen. Für die definierten Parameter wie Timer funktioniert dies auch mit Settimino, allerdings möchte ich auch die Ein- und Ausgänge an den Arduino auch übertragen können.
Die Eingänge befinden sich bei VM-Adresse 1024 - 1031 und die Ausgänge bei 1064 - 1071, jeweils 8 Byte.
Hat mit Settimino jemand schon Erfahrungen?
Hier das Script:
/*----------------------------------------------------------------------
Data Read Demo
Created 12 Dec 2016
by Davide Nardella
------------------------------------------------------------------------
This demo shows how to read data from the PLC.
A DB with at least 1024 byte into the PLC is needed.
Specify its number into DBNum variable
- Both small and large data transfer are performed (see DO_IT_SMALL)
- During the loop, try to disconnect the ethernet cable.
The system will report the error and will reconnect automatically
when you re-plug the cable.
- For safety, this demo *doesn't write* data into the PLC, try
yourself to change ReadArea with WriteArea.
- This demo uses ConnectTo() with Rack=0 and Slot=2 (S7300)
- If you want to connect to S71200/S71500 change them to Rack=0, Slot=0.
- If you want to connect to S7400 see your hardware configuration.
- If you want to work with a LOGO 0BA7 or S7200 please refer to the
documentation and change
Client.ConnectTo(<IP>, <Rack>, <Slot>);
with the couple
Client.SetConnectionParams(<IP>, <LocalTSAP>, <Remote TSAP>);
Client.Connect();
NodeMCU 1.0 ESP-12E ESP8266 supported
----------------------------------------------------------------------*/
// Wifi -> #define S7WIFI
// Cable -> #define S7WIRED
#define S7WIRED
#include <SPI.h>
#include <Ethernet.h>
#ifdef S7WIFI
//#include <ESP8266WiFi.h>
#endif
#include "Settimino.h"
// Uncomment next line to perform small and fast data access
#define DO_IT_SMALL
// Enter a MAC address and IP address for your controller below.
// The IP address will be dependent on your local network:
byte mac[] = {
0x90, 0xA2, 0xDA, 0x0F, 0x08, 0xE1 };
IPAddress Local(192,168,0,33); // Local Address
IPAddress PLC(192,168,0,3); // PLC Address
// Following constants are needed if you are connecting via WIFI
// The ssid is the name of my WIFI network (the password obviously is wrong)
char ssid[] = "SKYNET-AIR"; // Your network SSID (name)
char pass[] = "yourpassword"; // Your network password (if any)
IPAddress Gateway(192, 168, 0, 1);
IPAddress Subnet(255, 255, 255, 0);
int DBNum = 100; // This DB must be present in your PLC
byte Buffer[1024];
#ifdef S7WIFI
// S7Client will create a WiFiClient as TCP Client
S7Client Client(_S7WIFI);
#else
// S7Client will create an EthernetClient as TCP Client
S7Client Client(_S7WIRED);
#endif
unsigned long Elapsed; // To calc the execution time
//----------------------------------------------------------------------
// Setup : Init Ethernet and Serial port
//----------------------------------------------------------------------
void setup() {
// Open serial communications and wait for port to open:
Serial.begin(9600);
while (!Serial) {
; // wait for serial port to connect. Needed for Leonardo only
}
#ifdef S7WIFI
//--------------------------------------------- ESP8266 Initialization
Serial.println();
Serial.print("Connecting to ");
Serial.println(ssid);
WiFi.begin(ssid, pass);
WiFi.config(Local, Gateway, Subnet);
while (WiFi.status() != WL_CONNECTED)
{
delay(500);
Serial.print(".");
}
Serial.println("");
Serial.println("WiFi connected");
Serial.print("Local IP address : ");
Serial.println(WiFi.localIP());
#else
//--------------------------------Wired Ethernet Shield Initialization
// Start the Ethernet Library
Ethernet.begin(mac, Local);
// Setup Time, someone said me to leave 2000 because some
// rubbish compatible boards are a bit deaf.
delay(2000);
Serial.println("");
Serial.println("Cable connected");
Serial.print("Local IP address : ");
Serial.println(Ethernet.localIP());
#endif
}
//----------------------------------------------------------------------
// Connects to the PLC
//----------------------------------------------------------------------
bool Connect()
{
Client.SetConnectionParams(PLC, 0x0300, 0x0200);
Client.Connect();
Serial.print("Connecting to ");Serial.println(PLC);
// if (Result==0)
// {
// Serial.print("Connected ! PDU Length = ");Serial.println(Client.GetPDULength());
// }
// else
// Serial.println("Connection error");
// return Result==0;
}
//----------------------------------------------------------------------
// Dumps a buffer (a very rough routine)
//----------------------------------------------------------------------
void Dump(void *Buffer, int Length)
{
int i, cnt=0;
pbyte buf;
if (Buffer!=NULL)
buf = pbyte(Buffer);
else
buf = pbyte(&PDU.DATA[0]);
Serial.print("[ Dumping ");Serial.print(Length);
Serial.println(" bytes ]===========================");
for (i=1024; i<Length; i++)
{
cnt++;
if (buf[i]<0x10)
Serial.print("0");
Serial.print(buf[i], HEX);
Serial.print(" ");
if (cnt==16)
{
cnt=0;
Serial.println();
}
}
Serial.println("======================DATA=====================");
Serial.print("Timer 1: ");
Serial.println(buf[1], DEC);
Serial.print("Eingang 1: ");
Serial.println(buf[1024], DEC);
Serial.print("Ausgang 1: ");
Serial.println(buf[1064], DEC);
Serial.println("===============================================");
}
//----------------------------------------------------------------------
// Prints the Error number
//----------------------------------------------------------------------
void CheckError(int ErrNo)
{
Serial.print("Error No. 0x");
Serial.println(ErrNo, HEX);
// Checks if it's a Severe Error => we need to disconnect
if (ErrNo & 0x00FF)
{
Serial.println("SEVERE ERROR, disconnecting.");
Client.Disconnect();
}
}
//----------------------------------------------------------------------
// Profiling routines
//----------------------------------------------------------------------
void MarkTime()
{
Elapsed=millis();
}
//----------------------------------------------------------------------
void ShowTime()
{
// Calcs the time
Elapsed=millis()-Elapsed;
Serial.print("Job time (ms) : ");
Serial.println(Elapsed);
}
//----------------------------------------------------------------------
// Main Loop
//----------------------------------------------------------------------
void loop()
{
int Size, Result;
void *Target;
#ifdef DO_IT_SMALL
Size=1280; //64
Target = NULL; // Uses the internal Buffer (PDU.DATA[])
#else
Size=1024;
Target = &Buffer; // Uses a larger buffer
#endif
// Connection
while (!Client.Connected)
{
if (!Connect())
delay(500);
}
Serial.print("Reading ");Serial.print(Size);Serial.print(" bytes from DB");Serial.println(DBNum);
// Get the current tick
MarkTime();
Result=Client.ReadArea(S7AreaDB, // We are requesting DB access
DBNum, // DB Number
0, // Start from byte N.0
Size, // We need "Size" bytes
Target); // Put them into our target (Buffer or PDU)
if (Result==0)
{
ShowTime();
Dump(Target, Size);
}
else
CheckError(Result);
delay(500);
}
Danke für Eure Hilfe!