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Many second-hand lathes come with Macro B disabled. Check . If zero, set it to 1, and suddenly you can use #100 = #101 + 1 and WHILE [#1 LT 10] DO1 .
The single most important rule: . They are tied to the exact machine tool builder's configuration, FANUC control software version, PMC ladder logic version, and hardware options installed on the motherboard. A parameter list from a different machine may cause alarms, inoperative axes, or damaged hardware. fanuc ot 900 parameter list
In Fanuc 0-series CNC controls, system parameters fall into two distinct categories. The first category consists of —approximately 1,800 standard settings that control basic machine functions. Their functions are documented in Fanuc's publicly available manuals and are relatively straightforward to interpret and modify. Many second-hand lathes come with Macro B disabled
Below is the most detailed compiled from multiple sources (official documentation, Chinese-language references from Baidu Wenku, and machine tool builder data). Use caution—all parameters are per-bit values: 0 generally means "disabled" and 1 means "enabled." The single most important rule: