[Feature Request]: ads connection problem #2088
Description
What would you like to happen?
I am trying to use the plc4j to conncect a Beckhoff plc unsing ads, but cannot connect to the twincat3 simulator. my code is like this:
@test
public void plc4xAdsTest() throws PlcConnectionException {
String targetAmsNetId = "192.168.159.1.1.1";
Integer targetAmsPort = 851;
String sourceAmsNetId = "192.168.101.45.1.1";
Integer sourceAmsPort = 65534;
String timeout = "5000";
String urlFormat = "ads:tcp://192.168.159.1:851?target-ams-net-id={}&target-ams-port={}&source-ams-net-id={}&source-ams-port={}&timeout-request={}&tcp.default-timeout=6000";
String connectionString = StrUtil.format(urlFormat,targetAmsNetId,targetAmsPort,sourceAmsNetId,sourceAmsPort,timeout);
try {
PlcConnection plcConnection = PlcDriverManager
.getDefault()
.getConnectionManager()
.getConnection(connectionString);
//2， readSupported?
if (!plcConnection.getMetadata().isReadSupported()){
System.out.println("This connection doesn't support reading.");
return;
}
//3, writeSupported?
if (!plcConnection.getMetadata().isWriteSupported()){
System.out.println("This connection doesn't support writing.");
return;
}
if (plcConnection.isConnected()){
System.out.println(">>>>>>>>>ads connected。");
}
plcConnection.close();
} catch (Exception e) {
throw new PlcConnectionException(e);
}
}
and get the connection refused exception .
but I use Beckhoff's dll to connect the simulator, it is fine:
@test
public void plcAdstest2(){
AmsAddr addr = new AmsAddr();
JNIByteBuffer hdlBuff = new JNIByteBuffer(4);
JNIByteBuffer symBuff = new JNIByteBuffer(Convert.StringToByteArr("MAIN.int1"));
JNIByteBuffer dataBuff = new JNIByteBuffer(2);
long nPort = AdsCallDllFunction.adsPortOpen();
long nErr = AdsCallDllFunction.getLocalAddress(addr);
addr.setNetIdString("192.168.159.1.1.1");
addr.setPort(851);
if (nErr!=0){
System.out.println("ERROR: open Communication: 0x");
}
nErr = AdsCallDllFunction.adsSyncReadReq(addr,0x4040,0x5DFE8,2,dataBuff);
if (nErr!=0){
System.out.println("ERROR: Get handle: 0x");
int data = Convert.ByteArrToInt(dataBuff.getByteArray());
int hdl = Convert.ByteArrToInt(hdlBuff.getByteArray());
int sym = Convert.ByteArrToInt(symBuff.getByteArray());
System.out.println("sym:"+sym+ "hdl:"+hdl+"data:" +data);
System.out.println("nErr:" + nErr);
}else {
int intVal = Convert.ByteArrToInt(dataBuff.getByteArray());
System.out.println("PLCVar value: "+ intVal);
}
}
it is my first trying to use plc4x and twincat3 , is there any tricks in connection string or any tricks in twincat3?
Programming Languages
- plc4j
- plc4go
- plc4c
- plc4net
Protocols
- AB-Ethernet
- ADS /AMS
- BACnet/IP
- CANopen
- DeltaV
- DF1
- EtherNet/IP
- Firmata
- KNXnet/IP
- Modbus
- OPC-UA
- S7