Diagnostic Messages, Their Meaning And Possible Remedies - Siemens SIMATIC ET 200SP HA Equipment Manual

Parameters, diagnostics messages and address space
A.4 Diagnostics alarms
There is additionally a channel-specific display of the diagnostics through the corresponding
channel fault/channel status LEDs.
The diagnostics messages can, for example, be read out in the diagnostics buffer of the CPU.
Diagnostic messages are assigned either to one input on a channel-specific basis or to all inputs
as a module message. In the event of diagnostics messages that affect the entire module, all
channels are switched off. For diagnostics messages that relate to individual channels, only the
corresponding analog input is affected.
Table A-1

Diagnostic messages, their meaning and possible remedies

Diagnostics mes‐ Error
sage code
Channel/compo‐ 1F
H
nent temporarily
unavailable
Wire break 6
H
High limit violated 7
H
Low limit violated 8
H
Parameter assign‐ 10
H
ment error
Supply voltage 11
H
missing
Hardware inter‐ 16
H
rupt lost
Module is faulty 100
H
Short-circuit to 106
H
ground
Short-circuit/over‐ 10E
H
load at external
encoder supply
64
Assignment Meaning
Module Update of the firmware is being performed or
has been canceled. The module does not
perform any measurements during this time.
Analog input
• Impedance of encoder circuitry is too
high
• Wire break between the module and sen‐
sor
• Channel not connected (open)
Analog input
• The analog value is above the overrange.
• Short-circuit of input to L+
Analog input The analog value is below the underrange.
Module
• Parameter assignment does not match
the terminal block used
• Incorrect parameter assignment
Module Missing or insufficient supply voltage L+
Module Error is reported because the events occur
faster than they can be processed in the sys‐
tem
Module Internal module error has occurred
Analog input Short-circuit of the analog input to transduc‐
er supply or M
Analog input
• Short-circuit of the encoder supply to
ground
• Encoder supply overload
Remedy
• Restart firmware update
• Wait for firmware update
• Use a different 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
Correct the module/encoder
tuning
Correct the module/encoder
tuning
• Correct the parameter as‐
signment
• Check terminal block
• Check wiring of the supply
voltage L+ on the terminal
block
• Check the terminal block
type
Replace module
Correct the process wiring
• Correct the module/encod‐
er tuning
• Check the wiring
AI 4xI 2-/4-wire HART ISOL HA
Equipment Manual, 07/2022, A5E50101523-AB
1