What problem does it solve? When an ATE tester reports temperature mismatches like "Handler Temp=Settemp +25.0" or "Temperature check fail", engineers struggle to locate whether the fault lies in the tester program, the GPIB bridge, or the HT9045 handler. This Skill maps the full GPIB-to-WM_COPYDATA data flow of H9046_32GPIB.exe so you can trace any command from tester string to handler response and pinpoint the root cause. ## Core Features & Use Cases - Command Flow Tracing: Documents how ProcessStatusString dispatches GPIB strings (SETTEMP, SETTEMP?, SETSOAK, SETSITEMAP) to MSG_CMD_* codes and how responses are forwarded verbatim back to the tester. - Temperature Mismatch Diagnosis: Explains the iI38SETTEMPRespondSetTemp INI flag (0/1/2) that controls whether SETTEMP? returns "+25.0", "Settemp +25.0", or "25", and how to fix it via config.ini or SECS ECID 35548. - Tester Vendor Variants: Covers command subsets and custom flags for Advantest, Flex, 93K, SPEA, RFMD/Qorvo, Delta Castle, DOOSAN, and Novatek testers. - Use Case: A customer reports "Temperature check fail" on one machine but not others. Use this Skill to determine the handler INI flag bI38SETTEMPRespondSetTemp is set to 1, change it to 0, and verify SETTEMP? returns a plain numeric value. ## Quick Start Ask why the tester shows "Handler Temp=Settemp +25.0" and how to fix the temperature check failure on the HT9045 GPIB bridge.