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Siemens SIMATIC ET 200AL 매뉴얼
Interrupts/diagnostics alarms

5.2 Interrupts

5.2
Interrupts
Analog input module AI 4xU/I/RTD 4xM12 supports the following diagnostic and hardware
interrupts.
Diagnostic interrupt
The table below shows the events for which the analog input module returns a diagnostic
interrupt, depending on the parameter assignment.
Table 5- 3
Measurement
type
Voltage
Current
Resistance
Resistance
thermometer
Column valid for configuration with PROFINET GSD file
1
Column valid for configuration with PROFIBUS GSD file
2
Hardware interrupt
The analog input module generates a hardware interrupt with the following events:
● Low limit 1 violated
● High limit 1 violated
● Low limit 2 violated
● High limit 2 violated
Detailed information on the event is available in the hardware interrupt organization block
with the instruction "RALRM" (Read additional interrupt information) and in the STEP 7
online help.
32
Diagnostic interrupts
Measuring
range
Short-circuit
to ground
1 V to 5 V
x
0 V to 10 V
x
2-DMU
x
4 mA to
20 mA
4-DMU
x
0 mA to
20 mA
4-DMU
x
4 mA to
20 mA
150 Ω
-
300 Ω
-
PT100
-
Ni100
-
Diagnostics
Wire break
Underflow
x
x
-
x
x
x
-
x
x
x
x
-
x
-
x
x
x
x
Analog input module AI 4xU/I/RTD 4xM12 (6ES7144-5KD00-0BA0)
Overflow
Underflow/
1
1
Overflow
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
Manual, 08/2018, A5E32350124-AD
2