Missing instruction parameters; failed to add the AddDo instruction (For ER series, version V5.0)

52320

Alarm cause: The passed AddDo parameter item does not exist. For example, the SetDO command normally has 2 parameters (port variable, port value), but a 3rd variable (port type) was supplied, causing an error

Corrective measures: Check whether the AddDo parameters are correct

Applicable equipment

Source: Fault JSON · ESTUN_fault_codes_zh_en.json · SHA-256 e318b3bb20315d070a7f50bd7649bf7dfd7d178030a4f7c736a5aa22f48095f9 · 52320

Brand	ESTUN
Updated	2026-10-27

52320

Missing instruction parameters; failed to add the AddDo instruction (For ER series, version V5.0)

52320

Alarm cause: The passed AddDo parameter item does not exist. For example, the SetDO command normally has 2 parameters (port variable, port value), but a 3rd variable (port type) was supplied, causing an error

Corrective measures: Check whether the AddDo parameters are correct

Applicable equipment

Source: Fault JSON · ESTUN_fault_codes_zh_en.json · SHA-256 e318b3bb20315d070a7f50bd7649bf7dfd7d178030a4f7c736a5aa22f48095f9 · 52320

Brand	ESTUN
Updated	2026-10-27