Siemens SIMATIC ET 200AL, System Manual

Page: 633 / 2255

Interrupts/diagnostics alarms
5.3 Diagnostics alarms
Analog input module AI 4xU/I/RTD 4xM12 (6ES7144-5KD00-0BA0)
36
Equipment Manual, 08/2021, A5E32350124-AG
Table 5- 6 Diagnostics alarms - for the measuring range: 0 V to 10 V and 4-DMU 0 mA to 20 mA
Diagnostics
alarm
Error code Meaning Remedy
Short-circuit 1
H
Short-circuit encoder supply to
ground
Correct interplay between mod-
ule and encoder
High limit violat-
ed
7
H
Value is above overrange. Correct interplay between mod-
ule and sensor
Low limit violat-
ed
8
H
Value is below underrange. Correct interplay between mod-
ule and sensor
Error 9
H
Value is significantly above or
below underrange/overrange.
Correct interplay between mod-
ule and sensor
Parameter error 10
H
Module parameter assignment is
faulty
Correct the parameter assign-
ment
Hardware inter-
rupt lost
16
H
At least one hardware interrupt
could not be signaled because
too many hardware interrupts are
pending.
Correct the program or the pro-
cess
Table 5- 7 Diagnostics alarms - for the measuring range: 150 Ω and 300 Ω
Diagnostics
alarm
Error code Meaning Remedy
Wire break 6
H
Impedance of encoder circuit too
high
Use a different encoder type or
modify the wiring, for example,
using cables with larger cross-
section
Wire break between the module
and sensor
Connect the cable
Channel not connected (open)
• Deactivate diagnostics
• Connect the channel
• Deactivate channel
High limit violat-
ed
7
H
Value is above overrange. Correct interplay between mod-
ule and sensor
Parameter error 10
H
Module parameter assignment is
faulty
Correct the parameter assign-
ment
Hardware inter-
rupt lost
16
H
At least one hardware interrupt
could not be signaled because
too many hardware interrupts are
pending.
Correct the program or the pro-
cess
Note
Measurement type resistor (3-wire terminal)
A wire break of the M+ cable is not detected with measurement type resistor (3-wire
terminal). An incorrect measuring value is output in this case.