Siemens Simatic S7-1500/ET 200MP Handbuch - Seite 25
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Interrupts/diagnostics alarms
5.2 Interrupts
Reaction when reaching limits 1 and 2 at the same time
If the two high limits 1 and 2 are reached at the same time, the module always signals the
hardware interrupt for high limit 1 first. The configured value for high limit 2 is irrelevant.
After processing the hardware interrupt for high limit 1, the module triggers the hardware
interrupt for high limit 2.
The module has the same reaction when the low limits are reached at the same time. If the
two low limits 1 and 2 are reached at the same time, the module always signals the hardware
interrupt for low limit 1 first. After processing the hardware interrupt for low limit 1, the
module triggers the hardware interrupt for low limit 2.
Structure of the additional interrupt information
Table 5- 3
Structure of USI = W#16#0001
Data block name
USI
(User Structure Identifier)
The channel that triggered the hardware interrupt follows.
Channel
The event that triggered the hardware interrupt follows.
Event
24
Contents
W#16#0001
B#16#00 to B#16#n
B#16#03
B#16#04
B#16#05
B#16#06
Remark
Additional interrupt info for hardware inter-
rupts of the I/O module
Number of the event-triggering channel (n =
number of module channels -1)
Low limit violated 1
High limit violated 1
Low limit violated 2
Violation of high limit 2
Analog input module AI 16xU BA (6ES7531-7LH00-0AB0)
Equipment Manual, 09/2020, A5E47052556-AA
Bytes
2
1
1