Commit 94dc1896 authored by Ivan Tyagov's avatar Ivan Tyagov

Set ON/OFF relay0 at setting a variable over OPC-UA call (WIP).

parent f170efca
...@@ -86,6 +86,42 @@ static void addVariable(UA_Server *server) { ...@@ -86,6 +86,42 @@ static void addVariable(UA_Server *server) {
UA_NODEID_NUMERIC(0, UA_NS0ID_BASEDATAVARIABLETYPE), attr, NULL, NULL); UA_NODEID_NUMERIC(0, UA_NS0ID_BASEDATAVARIABLETYPE), attr, NULL, NULL);
} }
/* Connecto to physcal relays
*
*/
static void beforeReadTime(UA_Server *server,
const UA_NodeId *sessionId, void *sessionContext,
const UA_NodeId *nodeid, void *nodeContext,
const UA_NumericRange *range, const UA_DataValue *data) {
//printf("Before read.");
}
static void afterWriteTime(UA_Server *server,
const UA_NodeId *sessionId, void *sessionContext,
const UA_NodeId *nodeId, void *nodeContext,
const UA_NumericRange *range, const UA_DataValue *data) {
UA_LOG_INFO(UA_Log_Stdout, UA_LOGCATEGORY_USERLAND,
"The variable was updated");
setRelayState(0x0F);
printf("Relays ON.\n");
// wait 1s
sleep(1);
// switch off all relays
setRelayState(0x00);
}
static void addValueCallbackToCurrentTimeVariable(UA_Server *server) {
UA_NodeId currentNodeId = UA_NODEID_STRING(1, "relay0");
UA_ValueCallback callback ;
callback.onRead = beforeReadTime;
callback.onWrite = afterWriteTime;
UA_Server_setVariableNode_valueCallback(server, currentNodeId, callback);
}
/** /**
* Now we change the value with the write service. This uses the same service * Now we change the value with the write service. This uses the same service
* implementation that can also be reached over the network by an OPC UA client. * implementation that can also be reached over the network by an OPC UA client.
...@@ -154,6 +190,7 @@ int main(void) { ...@@ -154,6 +190,7 @@ int main(void) {
addVariable(server); addVariable(server);
writeVariable(server); writeVariable(server);
addValueCallbackToCurrentTimeVariable(server);
UA_StatusCode retval = UA_Server_run(server, &running); UA_StatusCode retval = UA_Server_run(server, &running);
......
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