Schneider Electric E020

Brand: Schneider ElectricModel: PLC (Modicon M221 / M241 / M262)Error code: E020

What the Fault Means

Real-time clock battery failure

Likely causes

  • RTC battery dead; time lost on power cycle

Solution and Safe First Checks

  1. Replace battery; set time via EcoStruxure; consider NTP sync

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

Related Schneider Electric error codes

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

Schneider Electric E020 · Zeror.ai