//------------------------------------------------------------------------------ // Copyright (C) 2011, Robert Johansson, Raditex AB // All rights reserved. // // rSCADA // http://www.rSCADA.se // info@rscada.se // //------------------------------------------------------------------------------ #include #include #include #include #include #include #include //------------------------------------------------------------------------------ // Execution starts here: //------------------------------------------------------------------------------ int main(int argc, char **argv) { mbus_handle *handle; mbus_frame reply; char *host, *addr; int port, ret; if (argc != 4) { printf("usage: %s host port secondary-mbus-address\n", argv[0]); return 0; } host = argv[1]; port = atoi(argv[2]); addr = strdup(argv[3]); if (strlen(argv[3]) != 16) { printf("Misformatted secondary address. Must be 16 character HEX number.\n"); return 1; } if ((handle = mbus_context_tcp(host, port)) == NULL) { fprintf(stderr, "Could not initialize M-Bus context: %s\n", mbus_error_str()); return 1; } if (!mbus_connect(handle)) { fprintf(stderr, "Failed to setup connection to M-bus gateway\n"); return 1; } if (mbus_send_select_frame(handle, addr) == -1) { printf("Failed to send selection frame: %s\n", mbus_error_str()); return 1; } ret = mbus_recv_frame(handle, &reply); if (ret == -3) { printf("No reply from device with secondary address %s: %s\n", argv[3], mbus_error_str()); return 1; } if (ret == -2) { printf("Invalid reply from %s: The address address probably match more than one device: %s\n", argv[3], mbus_error_str()); return 1; } if (mbus_frame_type(&reply) == MBUS_FRAME_TYPE_ACK) { if (mbus_send_request_frame(handle, 253) == -1) { printf("Failed to send request to selected secondary device: %s\n", mbus_error_str()); return 1; } if (mbus_recv_frame(handle, &reply) != 0) { printf("Failed to recieve reply from selected secondary device: %s\n", mbus_error_str()); return 1; } if (mbus_frame_type(&reply) != MBUS_FRAME_TYPE_ACK) { printf("Recieved a reply from secondarily addressed device: Searched for [%s] and found [%s].\n", argv[3], mbus_frame_get_secondary_address(&reply)); } } else { printf("Unknown reply:\n"); mbus_frame_print(&reply); } free(addr); mbus_disconnect(handle); mbus_context_free(handle); return 0; }