Hi Jim and Ben,

I think I know where this comes from. In the rework process we missed the
changes i added at the commit "d45f748b08d6c083a22993e756114ec8840589fa"
where it enforced the timestamp of a value to "null" because Siemens does
not allow you to write the timestamps of a value on your own.
In the past i just made the timestamp null for all requests but i think
that is not a really good default behavior should we add there an option
for that @Ben?

Greetings Matthias

Am Do., 11. März 2021 um 16:24 Uhr schrieb Matthias Milan Strljic <
[email protected]>:

> Hi Jim,
>
> nvm i over read the part with "Reading was OK" :D
>
>
> Am Do., 11. März 2021 um 16:21 Uhr schrieb Matthias Milan Strljic <
> [email protected]>:
>
>> Hi Jim,
>>
>> an addition to what Ben wrote. Make sure that you wrote the symbol of a
>> Siemens value correct. Some versions of Siemens TIA Variable mappings
>> require the ["]-Symbol included. So your path could also be required to
>> escape those.
>> In your case this could be something like:
>> builder.addItem("S7PLC.CureAbort", "ns=2;s=\"S7PLC\".CureAbort:BOOL", true);
>> As far as i worked with it correlates with the structure of your project
>> and your modularization in Components and FunctionBlocks but this is not
>> consistent over all used PLC or Sinumerik Controls.
>>
>> Greetings Matthias
>>
>>
>> Am Do., 11. März 2021 um 15:29 Uhr schrieb Wang, Jim <
>> [email protected]>:
>>
>>> Hi PLC4X team,
>>>
>>> When I use PLC4X's OPCUA protocol to write PLC, I always get
>>> ACCESS_DENIED for the PLC's tag (Reading is OK.)
>>> I list my code and message I get below in FYI: sections.
>>> How can I get rid of this issue?
>>> Thanks,
>>>
>>> Jim
>>>
>>>
>>> FYI: my codes
>>> ==================================
>>>        public static void WritePLC(PlcConnection plcConnection) throws
>>> InterruptedException, Exception, TimeoutException {
>>>               PlcWriteRequest.Builder builder =
>>> plcConnection.writeRequestBuilder();
>>>               builder.addItem("S7PLC.CureAbort", "ns=2;s=
>>> S7PLC.CureAbort:BOOL", true);
>>>               PlcWriteRequest writeRequest = builder.build();
>>>               PlcWriteResponse response = writeRequest.execute().get();
>>>               for (String fieldName : response.getFieldNames()) {
>>>                   if(response.getResponseCode(fieldName) ==
>>> PlcResponseCode.OK) {
>>>                      System.out.println("Value[" + fieldName + "]:
>>> updated");
>>>                   }
>>>                   else {
>>>                      System.out.println("Error[" + fieldName + "]: " +
>>> response.getResponseCode(fieldName).name());
>>>                   }
>>>               }
>>>        }
>>>
>>> FYI: the message when I run my codees
>>> ======================================
>>> opcua:tcp://localhost:49601/
>>> [main] INFO org.apache.plc4x.java.PlcDriverManager - Instantiating new
>>> PLC Driver Manager with class loader
>>> jdk.internal.loader.ClassLoaders$AppClassLoader@443b7951<mailto:
>>> jdk.internal.loader.ClassLoaders$AppClassLoader@443b7951>
>>> [main] INFO org.apache.plc4x.java.PlcDriverManager - Registering
>>> available drivers...
>>> [main] INFO org.apache.plc4x.java.PlcDriverManager - Registering driver
>>> for Protocol s7 (Siemens S7 (Basic))
>>> [main] INFO org.apache.plc4x.java.PlcDriverManager - Registering driver
>>> for Protocol opcua (OPC UA (TCP))
>>> [main] INFO org.apache.plc4x.java.opcua.connection.OpcuaTcpPlcConnection
>>> - Configured OpcuaTcpPlcConnection with: host-name 127.0.0.1
>>> [NonceUtilSecureRandom] INFO
>>> org.eclipse.milo.opcua.stack.core.util.NonceUtil - SecureRandom seeded in
>>> 0ms.
>>> [main] INFO org.eclipse.milo.opcua.sdk.client.OpcUaClient - Eclipse Milo
>>> OPC UA Stack version: 0.5.3
>>> [main] INFO org.eclipse.milo.opcua.sdk.client.OpcUaClient - Eclipse Milo
>>> OPC UA Client SDK version: 0.5.3
>>> Error[S7PLC.CureAbort]: ACCESS_DENIED
>>> Find West on Twitter <http://twitter.com/#!/WestPharma> and LinkedIn<
>>> http://www.linkedin.com/company/west-pharmaceutical-services?trk=fc_badge
>>> >.
>>>
>>> ________________________________
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>>>
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