//------------------------------------------------------------------------------ // Copyright (C) 2011, Robert Johansson, Raditex AB // All rights reserved. // // FreeSCADA // http://www.FreeSCADA.com // freescada@freescada.com // //------------------------------------------------------------------------------ #include #include #include #include #include #include #include //------------------------------------------------------------------------------ // Execution starts here: //------------------------------------------------------------------------------ int main(int argc, char **argv) { mbus_handle *handle; mbus_frame reply; char *device, *addr; int ret, baudrate = 9600; if (argc == 3) { device = argv[1]; addr = strdup(argv[2]); } else if (argc == 5 && strcmp(argv[1], "-b") == 0) { baudrate = atoi(argv[2]); device = argv[3]; addr = strdup(argv[4]); } else { fprintf(stderr, "usage: %s device secondary-mbus-address\n", argv[0]); return 0; } if (strlen(addr) != 16) { printf("Misformatted secondary address. Must be 16 character HEX number.\n"); return -1; } if ((handle = mbus_connect_serial(device)) == NULL) { printf("Failed to setup connection to M-bus device: %s\n", mbus_error_str()); return -1; } if (mbus_serial_set_baudrate(handle->m_serial_handle, baudrate) == -1) { printf("Failed to set baud rate.\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 == -1) { printf("No reply from device with secondary address %s: %s\n", argv[2], 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[2], 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) == -1) { 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[2], mbus_frame_get_secondary_address(&reply)); } } else { printf("Unknown reply:\n"); mbus_frame_print(&reply); } free(addr); mbus_disconnect(handle); return 0; }