DamonDBT commented on issue #929:
URL: https://github.com/apache/plc4x/issues/929#issuecomment-1590494953
got same problem when use plc4j 0.10.0 to subscript to s7 PLC.
the fellow check got **true**.
`plcConnection.getMetadata().canSubscribe() `
but when run the demo :
```
final PlcSubscriptionRequest.Builder builder =
plcConnection.subscriptionRequestBuilder();
String[] address = new String[2];
List<String[]> taglist = new ArrayList<>();
address[0] = "DB145.DBD10";
address[1] = "%DB145.DBD10:REAL";
taglist.add(address);
for (int i = 0; i < taglist.size(); i++) {
builder.addChangeOfStateField(taglist.get(0)[0],
taglist.get(0)[1]);
}
PlcSubscriptionRequest subscriptionRequest = builder.build();
final PlcSubscriptionResponse subscriptionResponse =
subscriptionRequest.execute().get();
```
still got error : org.apache.plc4x.java.s7.readwrite.field.S7Field cannot
be cast to org.apache.plc4x.java.s7.readwrite.field.S7SubscriptionField
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