Siemens Simatic S7-1500/ET 200MP 매뉴얼 - 페이지 24

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5.2

Interrupts

Analog input module AI 16xU BA supports the following diagnostic and hardware interrupts.

You can find detailed information on the event in the error organization block with the

"RALRM" instruction (read additional interrupt info) and in the STEP 7 online help.

Diagnostic interrupt

The module generates a diagnostic interrupt at the following events:

• Wire break

• Overflow

• Underflow

• Common mode error

• Parameter assignment error

Hardware interrupt

The module generates a hardware interrupt at the following events:

• Low limit violated 1

• High limit violated 1

• Low limit violated 2

• Above high limit 2

The module channel that triggered the hardware interrupt is entered in the start information

of the organization block. The diagram below shows the assignment to the bits of double

word 8 in local data.

Figure 5-2

Analog input module AI 16xU BA (6ES7531-7LH00-0AB0)

Equipment Manual, 09/2020, A5E47052556-AA

OB start information

Interrupts/diagnostics alarms

5.2 Interrupts