Code HOST-113: PROXY: %s bind error
Issue Description & Safety Warning
The Fanuc R-30i Series Robot Controller has triggered a critical PROXY: %s bind error alarm. Immediate attention from a qualified operator or maintenance technician is required to prevent secondary damage to the equipment or spoiled parts during the manufacturing cycle. Always ensure standard safety and LOTO procedures are followed before accessing electrical cabinets.
Official Troubleshooting Steps
Cause: The robot controller Proxy was not able to bind a TCP network socket. Remedy: This alarm generally implies that either the Proxy or the TCP/IP interface is not set up correctly. Verify network connectivity to the robot controller using the ping utility (on the robot, and also on the local PC). Check for abnormal activity with all installed Internet options. Obtain the ethernet.dg file from the MD: device, document the events that led to the error, and call your local FANUC representative.
Source: FANUC Robot R-30iA Alarm Code List Operator's Manual
Last reviewed: 2026-07-01 · Verified against the manufacturer’s official documentation.
About Fanuc R-30i Series Robot Controller Alarms
Fanuc controllers include extensive self-diagnostics that flag or halt the machine when a fault is detected. Error code HOST-113 on the R-30i Series Robot Controller identifies one specific fault condition — its documented cause and the official corrective steps are listed above, sourced from Fanuc's service documentation. Always confirm against the manual for your exact machine configuration and follow LOTO procedures before servicing.
Complete Alarm List: 6553 Fanuc R-30i Series Robot Controller codes.
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