8785 Hardware defect detected

Description

Refer to Diagnostic class (standard): 3

A hardware error is detected.

Ext. diagnosis

Meaning

Spi

Instance= OutputGroup

The status of the digital output remains unchanged until the supply voltage (connector CN1) has fallen to 0 volts. The diagnostic message can be entered in the message log when the controller is switched off, as the voltage drop of the supply voltage causes a Spi error before the CPU detects a power outage.

Instance= InputGroup

The digital inputs cannot be evaluated. The diagnostic message can be entered in the message log when the controller is switched off, as the voltage drop of the supply voltage causes a Spi error before the CPU detects a power outage.

Verify and correct if necessary the supply voltage.

Ref PowerFail

Evaluation of the digital inputs in accordance with the en61131-2 type 1 standard is no longer supported. The diagnostic message can be entered in the message log when the controller is switched off, as the voltage drop of the supply voltage causes a Ref PowerFail error before the CPU detects a power outage.

Cause

Solution

Detected software error: Module overload.

Contact your Schneider Electric representative.