Hi Luiz, just some time ago someone reported this and I just recently found the root-cause of it. https://github.com/apache/plc4x/issues/1593 Right now, I would simply ignore this message … it shouldn’t influence the functionality of the driver itself.
Does it work in general? Chris Von: Luiz doleron <dole...@gmail.com> Datum: Freitag, 12. Juli 2024 um 17:09 An: dev@plc4x.apache.org <dev@plc4x.apache.org> Betreff: RE: Re: PLC4J, Siemens S7-300 and MPI communication Hi Cesar and everyone, I'm trying to get the ODOT gateway to work with PLC4X, however, I'm getting a timeout WARN and the program stuck in the getConnection call. 1 - after plugging the gateway in the S7-300, I followed the instructions here<https://www.odotautomation.com/uploads/S7MPI-V2.0-user-manual.pdf> and set the IP using the NET-LINK app. 2 - The S7-300/ODOT gateway successfully replied to ping 3 - I was able to read data from the PLC using Kepware using S7/ethernet driver However, when I tried PLC4J, I got a timeout. Any idea what I'm doing wrong? My test code: public static void main(String[] args) { // System.setProperty(SimpleLogger.DEFAULT_LOG_LEVEL_KEY, "Error"); Logger logger = LoggerFactory.getLogger(TestConnection.class); String connectionString = "s7://10.10.26.88?controller-type:S7_300<http://10.10.26.88?controller-type:S7_300>"; PlcConnection plcConnection = null; try { plcConnection = PlcDriverManager.getDefault().getConnectionManager() .getConnection(connectionString); if (!plcConnection.getMetadata().isReadSupported()) { logger.error("This connection doesn't support reading."); return; } System.out.println("Success"); } catch (Exception e) { e.printStackTrace(); } finally { if (plcConnection != null) { try { plcConnection.close(); } catch (Exception e) { e.printStackTrace(); } } } } The log: [main] INFO org.apache.plc4x.java.DefaultPlcDriverManager - Instantiating new PLC Driver Manager with class loader jdk.internal.loader.ClassLoaders$AppClassLoader@2cdf8d8a [main] INFO org.apache.plc4x.java.DefaultPlcDriverManager - Registering available drivers... [main] INFO org.apache.plc4x.java.DefaultPlcDriverManager - Registering driver for Protocol s7 (Siemens S7 (Basic)) [main] INFO org.apache.plc4x.java.transport.tcp.TcpChannelFactory - Configuring Bootstrap with org.apache.plc4x.java.s7.readwrite.configuration.S7TcpTransportConfiguration@709ba3fb [main] INFO org.apache.plc4x.java.s7.readwrite.protocol.S7ProtocolLogic - S7 Driver running in ACTIVE mode. [main] INFO org.apache.plc4x.java.s7.readwrite.protocol.S7HMuxImpl - 12:01:12.590558651 userEventTriggered: Multiplexor Event: org.apache.plc4x.java.spi.events.ConnectEvent@5542c4ed [nioEventLoopGroup-2-1] WARN io.netty.channel.embedded.EmbeddedChannel - More than one exception was raised. Will report only the first one and log others. io.netty.handler.codec.DecoderException: io.netty.handler.codec.EncoderException: MessageToMessageCodec$1 must produce at least one message. at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:98) at io.netty.handler.codec.MessageToMessageCodec.channelRead(MessageToMessageCodec.java:111) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:442) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412) at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103) at io.netty.handler.codec.MessageToMessageCodec.channelRead(MessageToMessageCodec.java:111) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:442) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412) at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:346) at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:318) at io.netty.handler.codec.ByteToMessageCodec.channelRead(ByteToMessageCodec.java:103) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:442) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412) at io.netty.handler.logging.LoggingHandler.channelRead(LoggingHandler.java:280) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:442) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412) at org.apache.plc4x.java.s7.readwrite.protocol.S7HMuxImpl.decode(S7HMuxImpl.java:145) at org.apache.plc4x.java.s7.readwrite.protocol.S7HMuxImpl.decode(S7HMuxImpl.java:1) at io.netty.handler.codec.MessageToMessageCodec$2.decode(MessageToMessageCodec.java:81) at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:88) at io.netty.handler.codec.MessageToMessageCodec.channelRead(MessageToMessageCodec.java:111) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:442) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412) at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1410) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:440) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420) at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:919) at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:166) at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:788) at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:724) at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:650) at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:562) at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:997) at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: io.netty.handler.codec.EncoderException: MessageToMessageCodec$1 must produce at least one message. at io.netty.handler.codec.MessageToMessageEncoder.write(MessageToMessageEncoder.java:99) at io.netty.handler.codec.MessageToMessageCodec.write(MessageToMessageCodec.java:116) at io.netty.channel.AbstractChannelHandlerContext.invokeWrite0(AbstractChannelHandlerContext.java:891) at io.netty.channel.AbstractChannelHandlerContext.invokeWrite(AbstractChannelHandlerContext.java:875) at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:984) at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:868) at io.netty.handler.logging.LoggingHandler.write(LoggingHandler.java:288) at io.netty.channel.AbstractChannelHandlerContext.invokeWrite0(AbstractChannelHandlerContext.java:891) at io.netty.channel.AbstractChannelHandlerContext.invokeWrite(AbstractChannelHandlerContext.java:875) at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:984) at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:868) at io.netty.handler.codec.MessageToByteEncoder.write(MessageToByteEncoder.java:113) at io.netty.handler.codec.ByteToMessageCodec.write(ByteToMessageCodec.java:108) at io.netty.channel.AbstractChannelHandlerContext.invokeWrite0(AbstractChannelHandlerContext.java:891) at io.netty.channel.AbstractChannelHandlerContext.invokeWrite(AbstractChannelHandlerContext.java:875) at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:984) at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:868) at io.netty.handler.codec.MessageToMessageEncoder.write(MessageToMessageEncoder.java:113) at io.netty.handler.codec.MessageToMessageCodec.write(MessageToMessageCodec.java:116) at io.netty.channel.AbstractChannelHandlerContext.invokeWrite0(AbstractChannelHandlerContext.java:891) at io.netty.channel.AbstractChannelHandlerContext.invokeWrite(AbstractChannelHandlerContext.java:875) at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:984) at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:868) at io.netty.handler.codec.MessageToMessageEncoder.write(MessageToMessageEncoder.java:113) at io.netty.handler.codec.MessageToMessageCodec.write(MessageToMessageCodec.java:116) at io.netty.channel.AbstractChannelHandlerContext.invokeWrite0(AbstractChannelHandlerContext.java:891) at io.netty.channel.AbstractChannelHandlerContext.invokeWriteAndFlush(AbstractChannelHandlerContext.java:956) at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:982) at io.netty.channel.AbstractChannelHandlerContext.writeAndFlush(AbstractChannelHandlerContext.java:950) at io.netty.channel.AbstractChannelHandlerContext.writeAndFlush(AbstractChannelHandlerContext.java:1000) at io.netty.channel.DefaultChannelPipeline.writeAndFlush(DefaultChannelPipeline.java:1025) at io.netty.channel.AbstractChannel.writeAndFlush(AbstractChannel.java:306) at org.apache.plc4x.java.spi.internal.DefaultConversationContext.sendToWire(DefaultConversationContext.java:70) at org.apache.plc4x.java.spi.internal.DefaultSendRequestContext.handle(DefaultSendRequestContext.java:107) at org.apache.plc4x.java.spi.internal.DefaultSendRequestContext.handle(DefaultSendRequestContext.java:1) at org.apache.plc4x.java.s7.readwrite.protocol.S7ProtocolLogic.lambda$3(S7ProtocolLogic.java:194) at java.base/java.util.function.Consumer.lambda$andThen$0(Consumer.java:65) at org.apache.plc4x.java.spi.Plc4xNettyWrapper.decode(Plc4xNettyWrapper.java:183) at io.netty.handler.codec.MessageToMessageCodec$2.decode(MessageToMessageCodec.java:81) at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:88) ... 40 more [pool-6-thread-1] WARN org.apache.plc4x.java.s7.readwrite.protocol.S7ProtocolLogic - Timeout during Connection establishing, closing channel... [pool-6-thread-1] INFO org.apache.plc4x.java.s7.readwrite.protocol.S7HMuxImpl - Unregistered of channel: PRIMARY [pool-6-thread-1] WARN io.netty.channel.AbstractChannelHandlerContext - Failed to mark a promise as failure because it has succeeded already: DefaultChannelPromise@31ec571e(success) java.lang.IllegalStateException: HashedWheelTimer.stop() cannot be called from TimerTask at io.netty.util.HashedWheelTimer.stop(HashedWheelTimer.java:393) at org.apache.plc4x.java.spi.netty.NettyHashTimerTimeoutManager.stop(NettyHashTimerTimeoutManager.java:63) at org.apache.plc4x.java.spi.Plc4xNettyWrapper.close(Plc4xNettyWrapper.java:130) at io.netty.channel.AbstractChannelHandlerContext.invokeClose(AbstractChannelHandlerContext.java:757) at io.netty.channel.AbstractChannelHandlerContext.close(AbstractChannelHandlerContext.java:733) at io.netty.channel.DefaultChannelPipeline.close(DefaultChannelPipeline.java:994) at io.netty.channel.AbstractChannel.close(AbstractChannel.java:280) at io.netty.channel.embedded.EmbeddedChannel.close(EmbeddedChannel.java:569) at io.netty.channel.embedded.EmbeddedChannel.close(EmbeddedChannel.java:556) at org.apache.plc4x.java.s7.readwrite.protocol.S7ProtocolLogic.lambda$4(S7ProtocolLogic.java:185) at org.apache.plc4x.java.spi.Plc4xNettyWrapper.lambda$8(Plc4xNettyWrapper.java:253) at org.apache.plc4x.java.spi.netty.NettyHashTimerTimeoutManager.lambda$0(NettyHashTimerTimeoutManager.java:55) at io.netty.util.HashedWheelTimer$HashedWheelTimeout.run(HashedWheelTimer.java:715) at io.netty.util.concurrent.ImmediateExecutor.execute(ImmediateExecutor.java:34) at io.netty.util.HashedWheelTimer$HashedWheelTimeout.expire(HashedWheelTimer.java:703) at io.netty.util.HashedWheelTimer$HashedWheelBucket.expireTimeouts(HashedWheelTimer.java:790) at io.netty.util.HashedWheelTimer$Worker.run(HashedWheelTimer.java:503) at java.base/java.lang.Thread.run(Thread.java:840) OS: Ubuntu 22.04 JDK: /usr/lib/jvm/java-1.17.0-openjdk-amd64 [cid:ii_lyiu0d1z0] [cid:ii_lyiu1f6a1] -- Luiz Carlos d´Oleron
