Siemens SIMATIC ET 200SP HA - Diagnostic Messages, Their Meaning and Possible Remedies

There is additionally a channel-speci󹪝c display of the diagnostics through the corresponding
channel fault/channel status LEDs.
The diagnostics messages can, for example, be read out in the diagnostics bu󹪜er of the CPU.
Diagnostic messages are assigned either to one input on a channel-speci󹪝c basis or to all inputs
as a module message. In the event of diagnostics messages that a󹪜ect the entire module, all
channels are switched o󹪜. For diagnostics messages that relate to individual channels, only the
corresponding analog input is a󹪜ected.
Table A-1 Diagnostic messages, their meaning and possible remedies
Diagnostics mes‐
sage
Error
code
Assignment Meaning Remedy
Channel/compo‐
nent temporarily
unavailable
1F
H
Module Update of the 󹪝rmware is being performed or
has been canceled. The module does not
perform any measurements during this time.
• Restart 󹪝rmware update
• Wait for 󹪝rmware update
Wire break 6
H
Analog input
• Impedance of encoder circuitry is too
high
• Wire break between the module and sen‐
sor
• Channel not connected (open)
• Use a di󹪜erent encoder
type or modify the wiring,
for example, using cables
with a larger cross-section
• Connect the cable
• Disable diagnostics
• Connect the encoder con‐
tacts
High limit violated 7
H
Analog input
• The analog value is above the overrange.
• Short-circuit of input to L+
Correct the module/encoder
tuning
Low limit violated 8
H
Analog input The analog value is below the underrange. Correct the module/encoder
tuning
Parameter assign‐
ment error
10
H
Module
• Parameter assignment does not match
the terminal block used
• Incorrect parameter assignment
• Correct the parameter as‐
signment
• Check terminal block
1
Supply voltage
missing
11
H
Module Missing or insu󹪟cient supply voltage L+
• Check wiring of the supply
voltage L+ on the terminal
block
• Check the terminal block
type
Hardware inter‐
rupt lost
16
H
Module Error is reported because the events occur
faster than they can be processed in the sys‐
tem
Module is faulty 100
H
Module Internal module error has occurred Replace module
Short-circuit to
ground
106
H
Analog input Short-circuit of the analog input to transduc‐
er supply or M
Correct the process wiring
Short-circuit/over‐
load at external
encoder supply
10E
H
Analog input
• Short-circuit of the encoder supply to
ground
• Encoder supply overload
• Correct the module/encod‐
er tuning
• Check the wiring
Parameters, diagnostics messages and address space
A.4 Diagnostics alarms
AI 4xI 2-/4-wire HART ISOL HA
64 Equipment Manual, 07/2022, A5E50101523-AB