Siemens SIMATIC ET 200SP Manual page 42

Interrupts/diagnostics interrupts
7.2 Interrupts
Figure 7-2
Structure of the additional interrupt information
Table 7-4 Structure of USI = W#16#0001
Data block name
USI
The channel that triggered the hardware interrupt follows.
Channel
The error event that triggered the hardware interrupt follows.
Error event
Diagnostics interrupt
The module generates a diagnostics interrupt at the following events:
● Short circuit / wire break
● High limit violated
● Low limit violated
● Error
● Parameter assignment error
● No load voltage
● Channel temporarily unavailable
40
OB4x_POINT_ADDR tag
Content
W#16#0001
B#16#00 to B#16#01
B#16#03
B#16#04
B#16#05
B#16#06
Comment
User Structure Identifier: Additional interrupt info
for hardware interrupts of the I/O module
Channel 0 and 1 of the I/O module
Low limit 1 violated
High limit 1 violated
Low limit 2 violated
High limit 2 violated
Analog input module AI 2xSG 4-/6-wire HS (7MH4134-6LB00-0DA0)
Bytes
2
1
1
Manual, 09/2018, A5E41867508A-AB