By protocol

FANUC FOCAS

FOCAS (FANUC Open CNC API Specifications) is FANUC's library for reading and writing CNC data from a PC over Ethernet or HSSB. FOCAS1 covers older series (32-bit), FOCAS2 covers 30i/31i/32i/35i, 0i-D/F and Power Motion i-A (32- and 64-bit); the two are compatible. The library (A02B-0207-K732 or K737) is bought from FANUC and installed on the collector; Ethernet FOCAS listens on TCP 8193 by default.

Controls and builders using it

FANUC Series 0i (0i-D, 0i-F, 0i-F Plus)FANUC Series 30i / 31i / 32i / 35i (A, B, B Plus)FANUC 15i / 16i / 18i / 21i and older i-series FANUC Power Mate i and Power Motion i Makino DN Solutions (Doosan)Star Micronics Tsugami

Sources

Facts on this page come from these documents, opened on 27 October 2026.

FANUC America — FOCAS2 library
Software Toolbox — FAQ 1323 (FOCAS1 vs FOCAS2)
Software Toolbox — FAQ 4098 (FOCAS libraries)
Velotic (Kepware) — Fanuc Focas Ethernet driver
MachineMetrics — FOCAS protocol

Last verified 27 October 2026 against vendor documentation. OPC UA Connect is an educational resource published by TEEPTRAK; it is not affiliated with the OPC Foundation, the MTConnect Institute or any control maker.