Diagnostics Messages And Maintenance Events - Siemens SIMATIC ET 200SP Manual

Drivers, parameters, diagnostics messages and address space
A.5 Diagnostics messages and maintenance events
A.5

Diagnostics messages and maintenance events

Diagnostics messages
A diagnostics message is generated for every fault identified. The DIAG LED on the module
flashes.
The diagnostic messages can be read out from the diagnostic buffer of the CPU, for example.
Diagnostics messages are either assigned on a channel-specific basis to an input or output,
or assigned to the inputs as module messages affecting all inputs and outputs. All channels
are switched off following diagnostic messages affecting the entire module. Diagnostic
messages relating to individual channels only affect the corresponding digital output, digital
input or analog input.
Table A-1 Diagnostics messages, their meaning and how to deal with them
Diagnostics mes‐ Error
sage code
Overtemperature 5
H
Wire break 6
H
High limit violated 7
H
Low limit violated 8
H
Parameter as‐ 10
H
signment error
Supply voltage 11
H
missing
66
Assignment Meaning / Cause
Module
● Ambient temperature is too high
● Total current of digital outputs too high
● Short-circuit in one or more digital
outputs/encoder supplies
Digital output ● Wire break between the module and
actuator
● Channel not connected (open)
Analog input ● Impedance of encoder circuitry is too
high
● Wire break between the module and
sensor
● 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+
Input/output module AI-DI 16/DQ16x24VDC HART HA (6DL1133-6EW00-0PH1)
Solution
● Check wiring
● Eliminate the cause of the
excess temperature and
restart the module
● Connect the cable
● Disable diagnostics
● Use a different sensor type
or wire sensor differently;
for example, use lines with
larger cross-section
● Connect the cable
● Disable diagnostics
● Connect the encoder
contacts
● Correct the module/
encoder tuning
● Check the wiring
Correct the module/encoder
tuning
● Correct the parameter
assignment
● Check terminal block
1
● Check wiring of the supply
voltage L+ on the terminal
block
● Check the terminal block
type
Manual, 05/2017, A5E39294170-AA