//------------------------------------------------------------------------------ // 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; char *host; int port, address, debug = 0; int ret; if (argc == 3) { host = argv[1]; port = atoi(argv[2]); } else if (argc == 4 && strcmp(argv[1], "-d") == 0) { debug = 1; host = argv[2]; port = atoi(argv[3]); } else { printf("usage: %s [-d] host port\n", argv[0]); return 0; } if (debug) { mbus_register_send_event(&mbus_dump_send_event); mbus_register_recv_event(&mbus_dump_recv_event); } if ((handle = mbus_context_tcp(host, port)) == NULL) { printf("Scan failed: Could not initialize M-Bus context: %s\n", mbus_error_str()); return 1; } if (mbus_connect(handle) == -1) { printf("Scan failed: Could not setup connection to M-bus gateway: %s\n", mbus_error_str()); return 1; } if (debug) printf("Scanning primary addresses:\n"); for (address = 0; address <= 250; address++) { mbus_frame reply; memset((void *)&reply, 0, sizeof(mbus_frame)); if (debug) { printf("%d ", address); fflush(stdout); } if (mbus_send_ping_frame(handle, address) == -1) { printf("Scan failed. Could not send ping frame: %s\n", mbus_error_str()); return 1; } ret = mbus_recv_frame(handle, &reply); if (ret == MBUS_RECV_RESULT_TIMEOUT) { continue; } if (debug) printf("\n"); if (ret == MBUS_RECV_RESULT_INVALID) { /* check for more data (collision) */ mbus_purge_frames(handle); printf("Collision at address %d\n", address); continue; } if (mbus_frame_type(&reply) == MBUS_FRAME_TYPE_ACK) { /* check for more data (collision) */ if (mbus_purge_frames(handle)) { printf("Collision at address %d\n", address); continue; } printf("Found a M-Bus device at address %d\n", address); } } mbus_disconnect(handle); mbus_context_free(handle); return 0; }