Hello all, we're trying to replace our old style native INAT library by using a pure Java PLC library. I'm trying to connect to our S7-400 PLC but the PLC terminates the connection after the first message sent. As URL I've used the following: s7://192.168.3.166/0/3
Earlier we used the TSAP 0x0303 for connecting to the PLC by using a native library. Here is the Log output: 07:54:09.976 [main] INFO org.apache.plc4x.java.PlcDriverManager - Instantiating new PLC Driver Manager with class loader sun.misc.Launcher$AppClassLoader@73d16e93 07:54:09.992 [main] INFO org.apache.plc4x.java.PlcDriverManager - Registering available drivers... 07:54:09.992 [main] INFO org.apache.plc4x.java.PlcDriverManager - Registering driver for Protocol s7 (Siemens S7 (Basic)) 07:54:10.026 [main] DEBUG io.netty.util.internal.logging.InternalLoggerFactory - Using SLF4J as the default logging framework 07:54:10.032 [main] DEBUG io.netty.util.ResourceLeakDetector - -Dio.netty.leakDetection.level: simple 07:54:10.032 [main] DEBUG io.netty.util.ResourceLeakDetector - -Dio.netty.leakDetection.targetRecords: 4 07:54:10.042 [main] DEBUG io.netty.util.internal.PlatformDependent - Platform: Windows 07:54:10.042 [main] DEBUG io.netty.util.internal.PlatformDependent0 - -Dio.netty.noUnsafe: false 07:54:10.042 [main] DEBUG io.netty.util.internal.PlatformDependent0 - Java version: 8 07:54:10.042 [main] DEBUG io.netty.util.internal.PlatformDependent0 - sun.misc.Unsafe.theUnsafe: available 07:54:10.042 [main] DEBUG io.netty.util.internal.PlatformDependent0 - sun.misc.Unsafe.copyMemory: available 07:54:10.042 [main] DEBUG io.netty.util.internal.PlatformDependent0 - java.nio.Buffer.address: available 07:54:10.042 [main] DEBUG io.netty.util.internal.PlatformDependent0 - direct buffer constructor: available 07:54:10.042 [main] DEBUG io.netty.util.internal.PlatformDependent0 - java.nio.Bits.unaligned: available, true 07:54:10.042 [main] DEBUG io.netty.util.internal.PlatformDependent0 - jdk.internal.misc.Unsafe.allocateUninitializedArray(int): unavailable prior to Java9 07:54:10.042 [main] DEBUG io.netty.util.internal.PlatformDependent0 - java.nio.DirectByteBuffer.<init>(long, int): available 07:54:10.042 [main] DEBUG io.netty.util.internal.PlatformDependent - sun.misc.Unsafe: available 07:54:10.042 [main] DEBUG io.netty.util.internal.PlatformDependent - -Dio.netty.tmpdir: C:\Users\fp\AppData\Local\Temp (java.io.tmpdir) 07:54:10.042 [main] DEBUG io.netty.util.internal.PlatformDependent - -Dio.netty.bitMode: 64 (sun.arch.data.model) 07:54:10.042 [main] DEBUG io.netty.util.internal.PlatformDependent - -Dio.netty.maxDirectMemory: 3784310784 bytes 07:54:10.042 [main] DEBUG io.netty.util.internal.PlatformDependent - -Dio.netty.uninitializedArrayAllocationThreshold: -1 07:54:10.058 [main] DEBUG io.netty.util.internal.CleanerJava6 - java.nio.ByteBuffer.cleaner(): available 07:54:10.058 [main] DEBUG io.netty.util.internal.PlatformDependent - -Dio.netty.noPreferDirect: false 07:54:10.059 [main] DEBUG io.netty.util.ResourceLeakDetectorFactory - Loaded default ResourceLeakDetector: io.netty.util.ResourceLeakDetector@136432db 07:54:10.059 [main] DEBUG io.netty.util.internal.PlatformDependent - org.jctools-core.MpscChunkedArrayQueue: available 07:54:10.143 [main] INFO org.apache.plc4x.java.s7.connection.S7PlcConnection - Setting up S7 Connection with: host-name 192.168.3.166, rack 0, slot 0, pdu-size 1024, max-amq-caller 8, max-amq-callee 8 07:54:10.159 [main] DEBUG io.netty.channel.MultithreadEventLoopGroup - -Dio.netty.eventLoopThreads: 16 07:54:10.176 [main] DEBUG io.netty.util.internal.InternalThreadLocalMap - -Dio.netty.threadLocalMap.stringBuilder.initialSize: 1024 07:54:10.176 [main] DEBUG io.netty.util.internal.InternalThreadLocalMap - -Dio.netty.threadLocalMap.stringBuilder.maxSize: 4096 07:54:10.193 [main] DEBUG io.netty.channel.nio.NioEventLoop - -Dio.netty.noKeySetOptimization: false 07:54:10.193 [main] DEBUG io.netty.channel.nio.NioEventLoop - -Dio.netty.selectorAutoRebuildThreshold: 512 07:54:10.275 [main] DEBUG io.netty.channel.DefaultChannelId - -Dio.netty.processId: 9024 (auto-detected) 07:54:10.276 [main] DEBUG io.netty.util.NetUtil - -Djava.net.preferIPv4Stack: false 07:54:10.276 [main] DEBUG io.netty.util.NetUtil - -Djava.net.preferIPv6Addresses: false 07:54:10.933 [main] DEBUG io.netty.util.NetUtil - Loopback interface: lo (Software Loopback Interface 1, 127.0.0.1) 07:54:10.936 [main] DEBUG io.netty.util.NetUtil - Failed to get SOMAXCONN from sysctl and file \proc\sys\net\core\somaxconn. Default: 200 07:54:11.609 [main] DEBUG io.netty.channel.DefaultChannelId - -Dio.netty.machineId: 00:50:b6:ff:fe:26:ae:1f (auto-detected) 07:54:11.634 [main] DEBUG io.netty.buffer.PooledByteBufAllocator - -Dio.netty.allocator.numHeapArenas: 16 07:54:11.634 [main] DEBUG io.netty.buffer.PooledByteBufAllocator - -Dio.netty.allocator.numDirectArenas: 16 07:54:11.634 [main] DEBUG io.netty.buffer.PooledByteBufAllocator - -Dio.netty.allocator.pageSize: 8192 07:54:11.634 [main] DEBUG io.netty.buffer.PooledByteBufAllocator - -Dio.netty.allocator.maxOrder: 11 07:54:11.634 [main] DEBUG io.netty.buffer.PooledByteBufAllocator - -Dio.netty.allocator.chunkSize: 16777216 07:54:11.634 [main] DEBUG io.netty.buffer.PooledByteBufAllocator - -Dio.netty.allocator.tinyCacheSize: 512 07:54:11.634 [main] DEBUG io.netty.buffer.PooledByteBufAllocator - -Dio.netty.allocator.smallCacheSize: 256 07:54:11.634 [main] DEBUG io.netty.buffer.PooledByteBufAllocator - -Dio.netty.allocator.normalCacheSize: 64 07:54:11.634 [main] DEBUG io.netty.buffer.PooledByteBufAllocator - -Dio.netty.allocator.maxCachedBufferCapacity: 32768 07:54:11.634 [main] DEBUG io.netty.buffer.PooledByteBufAllocator - -Dio.netty.allocator.cacheTrimInterval: 8192 07:54:11.634 [main] DEBUG io.netty.buffer.PooledByteBufAllocator - -Dio.netty.allocator.cacheTrimIntervalMillis: 0 07:54:11.634 [main] DEBUG io.netty.buffer.PooledByteBufAllocator - -Dio.netty.allocator.useCacheForAllThreads: true 07:54:11.634 [main] DEBUG io.netty.buffer.PooledByteBufAllocator - -Dio.netty.allocator.maxCachedByteBuffersPerChunk: 1023 07:54:11.634 [main] DEBUG io.netty.buffer.ByteBufUtil - -Dio.netty.allocator.type: pooled 07:54:11.634 [main] DEBUG io.netty.buffer.ByteBufUtil - -Dio.netty.threadLocalDirectBufferSize: 0 07:54:11.634 [main] DEBUG io.netty.buffer.ByteBufUtil - -Dio.netty.maxThreadLocalCharBufferSize: 16384 07:54:11.676 [nioEventLoopGroup-2-1] DEBUG org.apache.plc4x.java.isotp.protocol.IsoTPProtocol - ISO Transport Protocol Sending Connection Request 07:54:11.693 [nioEventLoopGroup-2-1] DEBUG io.netty.buffer.AbstractByteBuf - -Dio.netty.buffer.checkAccessible: true 07:54:11.693 [nioEventLoopGroup-2-1] DEBUG io.netty.buffer.AbstractByteBuf - -Dio.netty.buffer.checkBounds: true 07:54:11.693 [nioEventLoopGroup-2-1] DEBUG io.netty.util.ResourceLeakDetectorFactory - Loaded default ResourceLeakDetector: io.netty.util.ResourceLeakDetector@68818334 07:54:11.693 [nioEventLoopGroup-2-1] DEBUG io.netty.util.Recycler - -Dio.netty.recycler.maxCapacityPerThread: 4096 07:54:11.693 [nioEventLoopGroup-2-1] DEBUG io.netty.util.Recycler - -Dio.netty.recycler.maxSharedCapacityFactor: 2 07:54:11.693 [nioEventLoopGroup-2-1] DEBUG io.netty.util.Recycler - -Dio.netty.recycler.linkCapacity: 16 07:54:11.693 [nioEventLoopGroup-2-1] DEBUG io.netty.util.Recycler - -Dio.netty.recycler.ratio: 8 07:54:11.693 [nioEventLoopGroup-2-1] DEBUG org.apache.plc4x.java.isoontcp.protocol.IsoOnTcpProtocol - ISO on TCP Message sent 07:54:11.708 [nioEventLoopGroup-2-1] WARN io.netty.channel.DefaultChannelPipeline - 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.PooledByteBuf.setBytes(PooledByteBuf.java:247) at io.netty.buffer.AbstractByteBuf.writeBytes(AbstractByteBuf.java:1140) 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:697) at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:632) at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:549) at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:511) at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:918) at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:745) org.apache.plc4x.java.api.exceptions.PlcConnectionException: java.util.concurrent.ExecutionException: org.apache.plc4x.java.api.exceptions.PlcIoException: Connection terminated by remote at org.apache.plc4x.java.base.connection.NettyPlcConnection.connect(NettyPlcConnection.java:88) at org.apache.plc4x.java.PlcDriverManager.getConnection(PlcDriverManager.java:73) at test.ReadValue.main(ReadValue.java:22) Caused by: java.util.concurrent.ExecutionException: org.apache.plc4x.java.api.exceptions.PlcIoException: Connection terminated by remote at java.util.concurrent.CompletableFuture.reportGet(CompletableFuture.java:357) at java.util.concurrent.CompletableFuture.get(CompletableFuture.java:1895) at org.apache.plc4x.java.base.connection.NettyPlcConnection.connect(NettyPlcConnection.java:79) ... 2 more Caused by: org.apache.plc4x.java.api.exceptions.PlcIoException: Connection terminated by remote at org.apache.plc4x.java.base.connection.NettyPlcConnection.lambda$connect$0(NettyPlcConnection.java:70) at io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:500) at io.netty.util.concurrent.DefaultPromise.notifyListenersNow(DefaultPromise.java:474) at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:413) at io.netty.util.concurrent.DefaultPromise.setValue0(DefaultPromise.java:538) at io.netty.util.concurrent.DefaultPromise.setSuccess0(DefaultPromise.java:527) at io.netty.util.concurrent.DefaultPromise.trySuccess(DefaultPromise.java:98) at io.netty.channel.DefaultChannelPromise.trySuccess(DefaultChannelPromise.java:84) at io.netty.channel.AbstractChannel$CloseFuture.setClosed(AbstractChannel.java:1156) at io.netty.channel.AbstractChannel$AbstractUnsafe.doClose0(AbstractChannel.java:758) at io.netty.channel.AbstractChannel$AbstractUnsafe.close(AbstractChannel.java:734) at io.netty.channel.AbstractChannel$AbstractUnsafe.close(AbstractChannel.java:605) at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.closeOnRead(AbstractNioByteChannel.java:105) at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.handleReadException(AbstractNioByteChannel.java:127) at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:174) at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:697) at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:632) at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:549) at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:511) at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:918) 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:745) Any ideas why this does not work? What options can I try to make this work? May be the rack/slot be is wrong? Looking forward for your help! Kind regards, Florian