Hi all,
news from my side: The logged exception happens during the disconnect
phase. Connecting, pinging and reading values works just fine. Fun Fact:
The communication works regardless of the specified rack/slot.
This is my updated program:
public static void main(String[] args) {
try (PlcConnection plcConnection = new
PlcDriverManager().getConnection("s7://172.30.74.65/0/0")) {
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());
// non optimized DB
for (int i = 0; i < 3; i++) {
PlcReadRequest.Builder builder =
plcConnection.readRequestBuilder();
final String fieldName = "field";
builder.addItem(fieldName, "%DB101.DBW78:INT");
PlcReadRequest readRequest = builder.build();
LocalDateTime start = now();
PlcReadResponse plcReadResponse = readRequest.execute().get();
System.out.println("request took " + Duration.between(start,
now()));
System.out.println(fieldName + " response: " +
plcReadResponse.getResponseCode(fieldName) + "; value: " +
plcReadResponse.getInteger(fieldName));
}
try (BufferedReader br = new BufferedReader(new
InputStreamReader(System.in))) {
br.readLine();
}
} catch (Exception e) {
e.printStackTrace();
}
System.out.println("disconnected");
}
The execution yields this output:
SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further
details.
connected
org.apache.plc4x.java.s7.connection.S7PlcConnection@131276c2
ping exception = false
request took PT0.029S
field response: OK; value: 2
request took PT0.002S
field response: OK; value: 2
request took PT0.002S
field response: OK; value: 2
Nov 08, 2019 12:53:36 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)
disconnected
The exception only shows after pressing enter, therefore during the
disconnect. I think what i discovered is a non-issue. Not nice, but not
stopping me.
BTW does PLC4J support reading optimized S7 DBs? If not, is support for
this planned at some point in time?
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
Shop: www.icorr.shop
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
Von: "Tim Mitsch" <[email protected]>
An: "[email protected]" <[email protected]>
Datum: 07.11.2019 17:47
Betreff: Re: Antwort: Re: Configuring a S7-1500 for Access with
PLC4J
Hey Sebastian
Sorry for delayed answer ? but first of all warm welcome on the list.
Just tested ur code-snippet vs our S7-1515 and is working fine.
U said u activated Put/Get.
Do u have the possibility to execute the scraper runner:
Plc4j/util/scraper/test/TriggeredScraperRunner
U need to adjust the ?example_triggered_scraper.yml? to ur needs (ip,
field) ?
Please take into account that the field to be read from must be a
NON-optimized block
If there are still issue please write on the list and I can make a
cross-check to the S7 Settings.
Best
Tim
Von: Sebastian Wiendl <[email protected]>
Antworten an: "[email protected]" <[email protected]>
Datum: Donnerstag, 7. November 2019 um 16:29
An: "[email protected]" <[email protected]>
Betreff: Antwort: Re: Configuring a S7-1500 for Access with PLC4J
Hi Cesar,
thanks for your input.
s7://172.30.74.65/0/0 <http://172.30.74.65/0/2> is an illegal plc4j
connection string. (The PLC's webserver is disabled btw.)
s7://172.30.74.65/0/0 yields the same exception as before.
I checked with our IT department in parallel - there is one router between
me and the PLC and port 102 is open and reachable. No firewalls either.
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_150B9900150B9504005508A3C12584AB]
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_150BB3DC150BAFF8005508A3C12584AB]
[cid:_2_150BB9C8150BB5E4005508A3C12584AB]
[cid:_2_150BBFB4150BBBD0005508A3C12584AB]
[cid:_1_150BC450150BBD20005508A3C12584AB]
Von: "Cesar Garcia" <[email protected]>
An: "Apache PLC4X" <[email protected]>
Datum: 07.11.2019 15:53
Betreff: Re: Configuring a S7-1500 for Access with PLC4J
________________________________
Hello,
Try (*"s7://172.30.74.65/0/0 <http://172.30.74.65/0/2>")*
For S7-1200 and S7-1500 is Rack=0, Slot=0,
Best regards
El jue., 7 nov. 2019 a las 9:58, Sebastian Wiendl (<
[email protected]>) escribió:
> 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
> <http://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
> <http://www.bhs-world.com<http://www.bhs-world.com/>>E-Mail:
[email protected]
> Internet: www.bhs-world.com
> Shop: www.icorr.shop
> ------------------------------
>
>
>
> *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
> ------------------------------
>
>
>
>
>
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