Zeror.ai Error Codes Siemens 20021

Siemens 20021

Brand: SiemensModel: PLC (S7-1200 / S7-1500)Error code: 20021

What the Fault Means

Gerçek Zamanlı Kernel Taşması

Likely causes

  • Hareket kontrol kernel'i zamanında tamamlanamadı

Solution and Safe First Checks

  1. Servo/interpolasyon çevrim sürelerini (P876) artır; teknoloji nesnelerinin sayısını azalt

Safety: do not work inside the panel without isolating the power; if unsure, consult a qualified technician.

Related Siemens error codes

Source: the Zeror.ai industrial fault database and Siemens technical documentation. This page is for information; on critical systems follow the manufacturer's manual and authorised service.