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代码 WN70: I/O Link i STATUS

问题描述与安全警告

Fanuc 30i/31i/32i CNC 触发了严重的 I/O Link i STATUS 警报。需要由合格的操作员或维修技师立即处理,以防止在制造周期中对设备造成二次损坏或导致零件报废。在接触电气控制箱之前,请务必确保遵循标准安全和停机挂牌 (LOTO) 程序。

官方故障排除步骤

ALARM (CHn Gxx Syy zz = **H) (Note1) Check the alarm information of applied I/O device. The status alarm except for the DO alarm occurs at “zz” bytes of slot “yy” of group “xx” in channel “n”. The “**H” shows some bits at which the alarm occurs by hexadecimal. For the details of the alarm of I/O devices, refer to the “Connection manual (HARDWARE) (B-64483EN)”. 1 When the unit name of the connected I/O dev ice is unknown, its hardware ID is displayed. 2 For some I/O devices, one unit such as a safety I/O unit may consist of two groups. If a connection failure occurs between groups containing units of the same type, PC058 instead of PC056 indicating a connection failure occurs as a unit failure. INPUT INVALID Input a valid address or numeric value. The input address or numeric value is invalid. PROGRAM IS PROTECTED BY PASSWORD Enter the password. The screen cannot be displayed because the program is pr otected by the password. ILLEGAL SUBPROGRAM NAME Input a existent subprogram number or symbol. A nonexistent subprogram number or symbol is specified. SYMBOL UNDEFINED Input a defined symbol or bit address. An undefined symbol character string is specified. THE NET IS NOT FOUND The s pecified net is not found. THE ADDRESS IS NOT FOUND The s pecified address is not found. THE FUNCTIONAL INSTRUCTION IS NOT FOUND The specified functional instruction is not found. WRITE COIL NEEDS BIT ADDRESS Specify a bit address for the write coil search. You entered a byte address when specifying an address used for the write coil search. SOME NETS ARE DISCARDED The system cannot pick up all the nets. Choose the nets to pick up, by using the LADDER DIAGRAM VIEWER display screen, and then perform the net pickup operation manually. The system failed to pick up all the nets because there were 128 nets or more to be picked up. PROGRAM IS BEING MODIFIED Disconnect the online communication with FANUC LADDER-III. Stop other applications from accessing the ladder data. The ladder data cannot be displayed because online communication with FANUC LADDER-III is in progress or another application is accessing the ladder data. THIS FUNCTION IS PROTECTED Cancel the protection by the programmer protection function or 8-level protection function. This function is protected by the programmer protection function or 8-level protection function. CANNOT EDIT FUNCTION BLOCK Edit the program using FANUC LADDER-III. An attempt was made to edit an FB main program. THIS NET IS PROTECTED When you are editing data on a per-subprogram basis, you cannot edit the subprogram frame nets (END1,

Source: Fanuc Series 30i/31i/32i-A Maintenance Manual, Appendix A Alarm List — PMC alarms (B-64485EN/01)

Last reviewed: 2026-07-01 · Verified against the manufacturer’s official documentation.

关于 Fanuc 30i/31i/32i CNC 警报

由 Fanuc 制造的工业控制器具有广泛的诊断系统,用于保护内部电路和机械连杆。当 30i/31i/32i CNC 出现类似 WN70 的错误代码时,通常表示指令值与实际传感器反馈之间存在不匹配。

完整报警清单: 85 Fanuc 30i/31i/32i CNC 代码s.

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