Diagnostics Messages; Diagnostic Messages, Their Meanings And Remedy Options - Siemens SIMATIC ET 200SP HA Equipment Manual

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Drivers, parameters, diagnostics messages and address space
A.3 Diagnostics messages
A.3

Diagnostics messages

Diagnostics alarms
A diagnostics message is generated for each diagnostics event and the DIAG LED on the
DI 16×24VDC HA flashes red or the MT LED lights up yellow.
In addition, channel-specific channel diagnostics are displayed through the corresponding
channel error/status 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
Wire break
6
H
Parameter assign‐
10
H
ment error
Supply voltage
11
H
missing
Hardware interrupt
16
H
lost
Channel/compo‐
1F
H
nent temporarily
unavailable
Short-circuit/over‐
10E
load at external en‐
coder supply
Shutdown on but‐
122
ton activation
Inconsistent param‐
123
eter assignment
42
Assignment
Channel
Impedance of encoder circuitry is too high Use another type of encoder or
Wire break between the module and sensor Connect the cable
Channel not connected (open)
Module
Module
Missing or insufficient supply voltage L+
Module
Error is reported because the events occur
faster than they can be processed in the
system.
Module
Firmware update is in progress or has been
canceled during the update.
The module does not read any process val‐
ues in this state.
Channel
Short-circuit of the encoder supply to
H
ground
Module
The output disable switch was activated.
H
Module
Errors in the redundancy parameters sent
H
to the module
Meaning
Parameter assignment does not match
the terminal block used
Incorrect parameter assignment
Remedy
wiring, for example, use con‐
ductors with a larger cross-sec‐
tion
Disable diagnostics
Connect encoder contacts
with a 15 kΩ to 18 kΩ re‐
sistor
1)
Switch off wire break check
Correct the parameter as‐
signment
Check terminal block
Check the supply voltage L
+ on the terminal block
Check terminal block
Restart the firmware up‐
date
Wait for firmware update
Correction of the process wir‐
ing
Pull module
Check the parameter assign‐
ment
Equipment Manual, 10/2020, A5E39265608-AD
2)
DI 16x24VDC HA

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