SRIO-003

WARN Serial port already open

The serial port has been opened.

Do not try to open an open serial port.

Applicable equipment

Source: Fault JSON · FANUC_R30iB_全部故障码_中英双语.json · SHA-256 3eef897f540467130587726e7a53e338980cbb19f10ad88a4eddbec837fb0f55 · SRIO-003

Brand	FANUC
Updated	2026-10-26

SRIO-003

The serial port has been opened.

Do not try to open an open serial port.

Applicable equipment

Source: Fault JSON · FANUC_R30iB_全部故障码_中英双语.json · SHA-256 3eef897f540467130587726e7a53e338980cbb19f10ad88a4eddbec837fb0f55 · SRIO-003

Brand	FANUC
Updated	2026-10-26