SDK Script opcua-write.are

/* DESC: This script will write a new value to a node at a OPC-UA server.
 * Copyright (C) 2015 NetModule AG, Switzerland
 */
 
void usage ()
{
    printf("usage: opcua-write.are <server> <port> <node-index> <node-id> <new-value>\n");
    exit(1);
}
 
if (argc != 5) {
    usage();
}
 
server = argv[1];               /* hostname or address */
port = (int) argv[2];           /* TCP port */
nindex = (int) argv[3];         /* node index (e.g. 0) */
nid = (int) argv[4];            /* node id (e.g. 85 = root) */
value = argv[5];                /* new value */
 
url = sprintf("opc.tcp://%s:%d", server, port);
 
client = nb_opcua_connect(url);
if (client < 0) {
    printf("unable to connect to %s", url);
    exit(0);
}
 
ret = nb_opcua_write(client, nindex, nid, value);
 
if (ret < 0) {
    printf("unable to write value of node %d:%d", nindex, nid);
} else {
    printf("node %d:%d has been written", nindex, nid);
}
 
nb_opcua_disconnect(client);
 
exit(0);