Hi Sebastian, first of, welcome to PLC4X : ) Second, interesting Issue you have there.. I will try to reproduce it. I think the issue is in the “ping()” method which does nothing “native” but rather uses the “ping” method of Netty’s channel handler. It would be a better test to just do a “read()” on some Field like a Marker or something.
Could you try that? Julian Von: Sebastian Wiendl <[email protected]> Antworten an: "[email protected]" <[email protected]> Datum: Donnerstag, 7. November 2019 um 14:58 An: "[email protected]" <[email protected]> Betreff: Configuring a S7-1500 for Access with PLC4J Hello everyone, my sample program of PLC4J (very similiar to the hello world example) fails to connect to my test PLC (S7-1500): Nov 07, 2019 2:37:51 PM io.netty.channel.DefaultChannelPipeline onUnhandledInboundException WARNUNG: An exceptionCaught() event was fired, and it reached at the tail of the pipeline. It usually means the last handler in the pipeline did not handle the exception. java.io.IOException: Eine vorhandene Verbindung wurde vom Remotehost geschlossen at sun.nio.ch.SocketDispatcher.read0(Native Method) at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:43) at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:223) at sun.nio.ch.IOUtil.read(IOUtil.java:192) at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:380) at io.netty.buffer.PooledUnsafeDirectByteBuf.setBytes(PooledUnsafeDirectByteBuf.java:288) at io.netty.buffer.AbstractByteBuf.writeBytes(AbstractByteBuf.java:1125) at io.netty.channel.socket.nio.NioSocketChannel.doReadBytes(NioSocketChannel.java:347) at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:148) at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:682) at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:617) at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:534) at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:496) at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:906) at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:748) "An existing connection was closed by the remote host" Thats my program at the moment: public static void main(String[] args) { try (PlcConnection plcConnection = new PlcDriverManager().getConnection("s7://172.30.74.65/0/2")) { System.out.println("connected"); System.out.println(plcConnection); CompletableFuture<Void> ping = plcConnection.ping(); ping.get(500, TimeUnit.MILLISECONDS); System.out.println("ping exception = " + ping.isCompletedExceptionally()); } catch (Exception e) { e.printStackTrace(); } System.out.println("disconnected"); } I can both ping the PLC as well as connect to it with the Siemens TIA Portal. Does the PLC need some special configuration in the project to be reachable via S7Comm via ISO on TCP? nmap shows port 102 TCP as open. Any help is much appreciated! Mit freundlichen Grüßen Kind regards Sebastian Wiendl DSE / Digital Solutions Software Engineer Phone: +49 9605 919 - 9341 E-Mail: [email protected] Internet: www.bhs-world.com<https://www.bhs-world.com> Shop: www.icorr.shop ________________________________ [cid:_1_14F1425C14F13E60004CB934C12584AB] BHS Corrugated Maschinen- und Anlagenbau GmbH Paul-Engel-Straße 1 92729 WEIHERHAMMER GERMANY Management: Christian Engel, Lars Engel Registered at Amtsgericht Weiden, HR B 1320 ________________________________ [cid:_2_14F15D3814F15954004CB934C12584AB] [cid:_2_14F1632414F15F40004CB934C12584AB] [cid:_2_14F1691014F1652C004CB934C12584AB] [cid:_1_14F16DAC14F1667C004CB934C12584AB]
