Hi all,
Chris your solution worked for writing BOOL, that's the only thing I
managed to do yesterday, but that's a start.
Cesar, the BOOL also worked of course but I got some issues:
-BYTE, WORD, DWORD: packet is sent but no data in it (Checked the log, the
app is sending packet with correct size but data is {0},{0},... (but
response code is OK and 0 is written to the PLC)
-INT: Got error response code 7 (Data Size Mismatch), but the packet
contains the correct data (from the log) at the right address. This is the
query: builder.addItem("006","%MW10:INT", (short) 0x0210);
-Other type: I get the message that the Transfert size code does not match
the data type
( e.g.: Transfer size code '68' doesn't match specified data type
'TIME_OF_DAY' invalid)
Etienne
Le mer. 26 févr. 2020 à 04:22, Cesar Garcia <[email protected]> a
écrit :
> Hi Chris,
>
> I understand that the priority of the drivers in PLC4X is the reading
> process, so writing to the PLC has not worked much.
>
> I have already made several corrections in the legacy driver for the S7,
> which corrects the writing process, however there are still many types
> (characters, strings and time) that are not written.
>
> I hope to upload the code tomorrow in such a way that it helps in the new
> version of the driver for S7.
>
> Attach the test code.
>
> try (PlcConnection plcConnection = new
> PlcDriverManager().getConnection("s7://192.168.1.23/0/2")){
> System.out.println("Write to MW200..2003, values 0x0001,
> 0x0002, 0x0003...");
> PlcWriteRequest.Builder builder =
> plcConnection.writeRequestBuilder();
>
> /**
> * Test for S7300/S7400
> * Elementary Data Types
> * Bit Data Types
> **/
> builder.addItem("001","%MX200.0:BOOL", true);
> builder.addItem("002","%MB201:BYTE", (byte) 0x12);
> builder.addItem("003","%MW202:WORD", (short) 0x4321);
> builder.addItem("004","%MD204:DWORD", (int) 0x87654321);
>
> /*
> * Character Types
> * TODO: Fail S7PlcFieldHandler, line 247
> */
> //builder.addItem("005","%MB208:CHAR", (byte) 0x32);
>
> /*
> * Numeric Types
> */
> builder.addItem("006","%MW210:INT", (short) 0x0210);
> builder.addItem("007","%MD212:DINT", (int) 0x21200212);
> builder.addItem("008","%MD216:REAL", (float) 3.141516);
>
> /*
> * Time Types
> */
> //builder.addItem("009","%MD220:TIME",
> LocalDateTime.now().toLocalTime());
> //builder.addItem("010","%MW224:DATE",
> LocalDateTime.now().toLocalDate());
> //builder.addItem("011","%MD226:TIME_OF_DAY",
> LocalDateTime.now().toLocalTime());
>
> /**
> * Test for S7300/S7400
> * Complex Data Types
> **/
> //builder.addItem("012","%MD230:DT", LocalDateTime.now());
> //builder.addItem("013","%MD234:DATE_AND_TIME",
> LocalDateTime.now());
> //builder.addItem("014","%MD234:STRING", "VENEZUELA");
> //builder.addItem("015","%MB234:ARRAY",
> (byte)[]({0x01,0x02,0x03}));
>
> PlcWriteRequest request = builder.build();
>
> PlcWriteResponse response = request.execute().get(2,
> TimeUnit.SECONDS);
>
> Collection<String> names = response.getFieldNames();
>
> for (String name:names){
> System.out.println("Index: " + name +
> " Response code: " +
> response.getResponseCode(name));
> }
>
> plcConnection.close();
> } catch (Exception ex){
> LOGGER.info("Fail connection. Check IP address, rack, slot: " +
> ex);
> }
>
> Best regards,
>
> El mar., 25 feb. 2020 a las 16:34, Christofer Dutz (<
> [email protected]>) escribió:
>
> > Hi Etienne,
> >
> > yes indeed. The thing is none ever asked for writing even if we've
> > implemented that.
> > Try this code:
> >
> > PlcWriteRequest.Builder writeBuilder =
> > plcConnection.writeRequestBuilder();
> > writeBuilder.addItem("value-1", "%Q0.0:BOOL", true);
> > writeBuilder.addItem("value-2", "%Q0.1:BOOL", true);
> > writeBuilder.addItem("value-3", "%Q0.2:BOOL", true);
> > writeBuilder.addItem("value-4", "%Q0.3:BOOL", true);
> > final PlcWriteRequest writeRequest = writeBuilder.build();
> >
> > final PlcWriteResponse plcWriteResponse =
> > writeRequest.execute().get();
> > System.out.println(plcWriteResponse);
> >
> > At least that's the code I've used for testing the new write features of
> > the new S7 driver.
> >
> > Chris
> >
> >
> >
> > Am 25.02.20, 14:25 schrieb "Etienne Robinet" <[email protected]>:
> >
> > Hi all,
> > are there any example of writing to a S7 PLC? All the examples in the
> > library are about READING from a PLC. Is the writing also implemented yet
> > (seems like it).
> >
> > I had some quick tries but nothing precise for now.
> >
> > Regards,
> >
> > Etienne
> >
> >
> >
>
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