Esistono delle variabili per comprendere su una cpu M580 se è in errore e quale è la motivazione ?

%SW125

BLKERRTYPE

Function

Last fault detected

Initial State

–

Platforms

M340: Yes M580: Yes M580 Safety: Yes

Quantum: Yes Momentum: Yes

Premium: Yes Atrium: Yes

The code of the last fault detected is given in this word.

The following error codes cause the PLC to stop if %S78 is set to 1. %S15, %S18 and %S20 are always activated independently of %S78:

• 16#2258: execution of HALT instruction
• 16#DE87: calculation error on floating-point numbers (%S18, these errors are listed in the word %SW17)
• 16#DEB0: Watchdog overflow (%S11)
• 16#DEF0: division by 0 (%S18)
• 16#DEF1: character string transfer error (%S15)
• 16#DEF2: arithmetic error (%S18)
• 16#DEF3: index overflow (%S20)

NOTE: The following codes 16#8xF4, 16#9xF4, and 16#DEF7 indicate an error on Sequence Function Chart (SFC).

NOTE: The codes listed above is a non-exhaustive list.

%SW126

ERRADDR0

%SW127

ERRADDR1

Function

Blocking error instruction address

Initial State

0

Platforms

M340: Yes M580: Yes M580 Safety: Yes

Quantum: Yes Momentum: Yes

Premium: Yes Atrium: Yes

NOTE: Only used for support.

Address of the instruction that generated the application blocking error.

For 16 bit processors, TSX P57 1••/2••:

• %SW126 contains the offset for this address.
• %SW127 contains the segment number for this address.

For 32 bit processors:

• %SW126 contains the least significant word for this address.
• %SW127 contains the most significant word for this address.

For a system STOP due a watchdog overflow:

• %SW126 contains the number of the MAST task with the overflow.
• %SW127 contains the value of the MAST task with the overflow.