Siemens SIMATIC ET 200AL Podręcznik - Strona 34

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The start information of the organization block includes information on which channel of the

analog input module triggered the hardware interrupt.

Note

Violation of two limits

If two limits are violated at the same time, limit 1 is always signaled first, followed by limit 2.

The figure below shows the assignment to the bits of the local data double word 8.

Figure 5-2

Structure of the additional interrupt information

Table 5- 4

Data block name

USI

(User Structure Identifi-

er)

The channel that triggered the hardware interrupt follows.

Channel

The error event that triggered the hardware interrupt follows.

Event

Analog input module AI 4xU/I/RTD 4xM12 (6ES7144-5KD00-0BA0)

Manual, 08/2018, A5E32350124-AD

Start information of the organization block

Structure of USI = W#16#0001

Contents

W#16#0001

B#16#00 to

B#16#03

B#16#04

B#16#05

B#16#06

Interrupts/diagnostics alarms

Comment

Additional interrupt info for hardware inter-

rupts of the I/O module

Number of channel which triggered the event 1

Low limit 1 violated

High limit 1 violated

Low limit 2 violated

High limit 2 violated

5.2 Interrupts

Bytes