Hi Gunther, I double checked and indeed the memory area enum is missing a constant for markers. I'll investigate the issue.
Thanks for reporting and thanks for giving Plc4x a try :-) Chris Outlook f?r Android<https://aka.ms/ghei36> herunterladen ________________________________ From: Gunther Gruber <[email protected]> Sent: Wednesday, February 20, 2019 5:26:33 PM To: [email protected] Subject: plc4j Marker not implemented Hello, i use plc4j for a small project demo. Thx for developing this driver, must have take some time to figure out the details to talk to these machines :) I took the hello world example and try to read some variables from a S7-1500, however I get a null pointer exception. I guess only %I and %Q is implemented. The variable i try to read is: %M0.4:BOOL java.util.concurrent.ExecutionException: java.lang.NullPointerException at java.util.concurrent.CompletableFuture.reportGet(CompletableFuture.java:357) at java.util.concurrent.CompletableFuture.get(CompletableFuture.java:1895) at collector.plc4j.PLCCollectorOperatorTest.initPLC(PLCCollectorOperatorTest.java:100) at collector.plc4j.PLCCollectorOperatorTest.Test(PLCCollectorOperatorTest.java:46) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47) at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17) at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268) at org.junit.runners.ParentRunner.run(ParentRunner.java:363) at org.junit.runner.JUnitCore.run(JUnitCore.java:137) at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68) at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47) at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242) at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70) Caused by: java.lang.NullPointerException at org.apache.plc4x.java.s7.netty.S7Protocol.encodeS7AnyParameterItem(S7Protocol.java:392) at org.apache.plc4x.java.s7.netty.S7Protocol.encodeParameterReadWriteVar(S7Protocol.java:351) at org.apache.plc4x.java.s7.netty.S7Protocol.encodeParameters(S7Protocol.java:302) at org.apache.plc4x.java.s7.netty.S7Protocol.writeS7Message(S7Protocol.java:207) at org.apache.plc4x.java.s7.netty.S7Protocol.write(S7Protocol.java:185) at io.netty.channel.AbstractChannelHandlerContext.invokeWrite0(AbstractChannelHandlerContext.java:738) at io.netty.channel.AbstractChannelHandlerContext.invokeWrite(AbstractChannelHandlerContext.java:730) at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:816) at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:723) at io.netty.handler.codec.MessageToMessageEncoder.write(MessageToMessageEncoder.java:111) at io.netty.handler.codec.MessageToMessageCodec.write(MessageToMessageCodec.java:116) at io.netty.channel.AbstractChannelHandlerContext.invokeWrite0(AbstractChannelHandlerContext.java:738) at io.netty.channel.AbstractChannelHandlerContext.invokeWrite(AbstractChannelHandlerContext.java:730) at io.netty.channel.AbstractChannelHandlerContext.access$1900(AbstractChannelHandlerContext.java:38) at io.netty.channel.AbstractChannelHandlerContext$AbstractWriteTask.write(AbstractChannelHandlerContext.java:1081) at io.netty.channel.AbstractChannelHandlerContext$WriteAndFlushTask.write(AbstractChannelHandlerContext.java:1128) at io.netty.channel.AbstractChannelHandlerContext$AbstractWriteTask.run(AbstractChannelHandlerContext.java:1070) at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:163) at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:404) at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:463) at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:886) at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:748)
