Fanuc Focas Documentation May 2026

// 3. Read active alarms cnc_rdalarm(h, 0, 10, &alarm_cnt, alarm);

FOCAS is FANUC’s official library (DLLs/API) for reading/writing data from FANUC CNCs (Series 0i, 30i, 31i, 35i, etc.) over Ethernet or HSSB. FANUC does not publicly host full PDFs on an open web page. You must access them through: fanuc focas documentation

// 1. Connect cnc_allclibhndl3("192.168.1.100", 8193, 10, &h); // 3. Read active alarms cnc_rdalarm(h

unsigned short h; // Handle