Siemens SIMATIC ET 200SP HA Manuale - Pagina 43

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Siemens SIMATIC ET 200SP HA Manuale
A.4

Diagnostics messages and maintenance events

Diagnostics messages
A diagnostics message is generated for each diagnostics event and the DIAG LED flashes on
the module.
There is additionally a channel-specific display of the diagnostics through the corresponding
channel fault LEDs
The diagnostics messages can be read in the diagnostics buffer of the CPU, for example.
Diagnostic messages are assigned either channel-specific to an input or assigned as module
messages to all inputs. All channels are switched off for diagnostics messages that affect the
entire module. Only the corresponding digital input is affected by diagnostics messages, which
refer to individual channels.
Table A-1
Diagnostic messages, their meanings and remedy options
Diagnostics mes‐
Error
sage
code
Short-circuit (NA‐
1
H
MUR change-over
contact and NAMUR
encoders only)
Tip: Check NO and
NC channel for NA‐
MUR change-over
contact.
Channel/component
1F
temporarily unavaila‐
ble
Wire break (NAMUR
6
H
change-over contact
only, NAMUR encod‐
ers, encoders wired
with 10 kΩ and sin‐
gle contacts wired
with 10 kΩ)
Tip: Check NO and
NC channel for NA‐
MUR change-over
contact
Parameter assign‐
10
ment error
Digital Input Module DI 16xNAMUR HA (6DL1131-6TH00-0PH1)
Manual, 11/2017, A5E39293880-AB
Assignment
Channel
Module
H
Channel
Module
H
Drivers, parameters, diagnostics messages and address space
A.4 Diagnostics messages and maintenance events
Meaning / Cause
Short-circuit on signal line to the en‐
coder
Encoder is defective
Wrong encoder type configured
Load impedance too low
Firmware update is in progress or
has been canceled during the update.
The module stops acquiring process
values during this time
Signal line to an encoder interrupted Correction of the process wir‐
Encoder is defective
Wrong encoder type configured
Load impedance too high
Channel not connected (open)
● Parameter assignment does not
match the terminal block used
● Incorrect parameter assignment
Remedy
Correction of the process wir‐
ing
Replace the encoder
Correction of the parameter
assignment
Use an encoder with higher
impedance
● Restart firmware update
● Wait for firmware update
ing
Replace the encoder
Correction of the parameter
assignment
Use another type of encoder
or wiring, for example, use
conductors with a larger cross-
section
Deactivate diagnostics, wire
encoder contacts
● Correct the parameter
assignment
● Check terminal block
1
43