Zeror.ai Error Codes Siemens OB72

Siemens OB72

Brand: SiemensModel: S7-300 / S7-400 PLC CPU Organizasyon Blokları (OB) ve Sistem HatalarıError code: OB72

What the Fault Means

CPU yedeklilik hatası

Likely causes

  • H-CPU yedeklilik kaybı

Solution and Safe First Checks

  1. İkinci CPU'yu kontrol edin; yedeklilik bağlantı kablolarını doğrulayın

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.