Hello Chris,
thank you!
I'm currently using some exotic RTU devices, just for test, so mine is a
low priority question.
Of course i'm fully available to test any release against those devices.
Greetings,
Alessio
On Wed, Sep 2, 2020 at 5:14 PM Christofer Dutz <christofer.d...@c-ware.de>
wrote:
> Hi Alessio,
>
> welcome on this super-cool community list of ours :-)
>
> Unfortunately I have a little "uncool" news ... while working on the new
> drivers, it occurred to me that we currently are absolutely able to run one
> protocol over multiple transports, however if the transports require
> different handling on the lowest level, we currently haven't got that base
> covered.
>
> We started discussing options on how to solve this problem, but the
> discussion is ongoing ...
>
> Unfortunately I didn't update the documentation ... as I thought we'd be
> able to implement this sooner.
>
> Possibly the 0.6.x version of PLC4X could work as starting with 0.7.0 we
> have deleted all existing drivers and have replaced them with new,
> generated ones and are still working on implementing all the features the
> old ones had. Unfortunately you seem to be the first person to ask for
> serial Modbus, so we hadn't prioritized that up too much.
>
> So for now .. please give the 0.6.1 a go (might have slightly different
> syntax and connection string) and join in on the discussion here on the
> list and possibly help us finish this ... as none of us have a serial
> Modbus device, it's sort of tricky to implement a driver for it.
>
> Chris
>
>
>
>
> Am 02.09.20, 16:50 schrieb "Alessio Bernesco Làvore" <
> alessio.berne...@gmail.com>:
>
> Hi everyone,
>
> i'm trying to complete some tests connecting a Modbus RTU device
> (digital
> input converter).
>
> The device is connected using a USB/485 converter, running with
> pyModbus
> i'm able to communicate with the device.
>
> I'm using this connection string:
>
> PlcConnection plcConnection = new
>
> PlcDriverManager().getConnection("modbus:serial:///dev/ttyUSB0?unit-identifier=1");
>
> Then:
> PlcReadRequest.Builder builder = plcConnection.readRequestBuilder();
> builder.addItem("value-0", "holding-register:14");
> PlcReadRequest readRequest = builder.build();
> PlcReadResponse response = readRequest.execute().get();
>
> But i was unable to obtain a response, watching at the logs there are
> plenty of:
> io.netty.channel.nio.NioEventLoop : Migrated 1 channel(s) to
> the new
> Selector.
> Selector.select() returned prematurely 512 times in a row; rebuilding
> Selector
> org.apache.plc4x.java.transport.serial.SerialPollingSelector@37f2b566.
>
> Another important part is that i'm unable to find where i can
> configure the
> serial communication parameters, like baud rate, stop bits, etc.
>
> Greetings,
> Alessio
>
>
