Diagnostics Alarms - Siemens SIMATIC ET 200SP Manual

Interrupts/diagnostics alarms

7.3 Diagnostics alarms

7.3 Diagnostics alarms
A diagnostic alarm is generated for each detected diagnostic event. The DIAG LED flashes on
the module.
There is additionally a channel-specific display of the diagnostics through the corresponding
channel fault/channel status LEDs.
The diagnostic alarms can, for example, be read from the diagnostic buffer of the CPU or be
displayed in STEP 7 using the Online and Diagnostics view. You can evaluate the error codes
with the user program.
Table 7-4 Diagnostic alarms, their meaning and how to deal with them
Diagnostic alarm
Channel/component
temporarily unavailable
Short-circuit
Overtemperature
Wire break
High limit violated
Low limit violated
Parameter assignment
error
No supply voltage
HART communication
error
42
Error code Meaning
1F
● Update of the firmware is being
H
performed or has been canceled. The
module does not perform any
processing during this time
1
● Short-circuit of cable to the actuator or
H
impedance too low
5
● Ambient temperature is too high
H
● Total current of the analog outputs too
high
● Short-circuit of one or more analog
outputs
6
● Wire break between the module and
H
actuator
● Channel not connected (open)
7
● The analog value is above the
H
overrange.
8
● The analog value is below the
H
underrange.
10
● Incorrect parameter assignment
H
11
● No or insufficient supply voltage L+
H
141
● HART field device is not responding
H
● Timing error
● HART field device did not understand
the command that was sent (1st status
byte)
Remedy
● Restart firmware update
● Wait for firmware update
● Correct process wiring
● Check connected final controlling
element
● Check wiring
● Check the ambient condition
● Connect the cable
● Disable diagnostics
● Correct the output value
● Correct the output value
● Correct the parameter assignment
● Check wiring of the supply voltage L
+ on the BaseUnit
● Check BaseUnit type
● Check the process wiring
● Correct the parameter assignment
● Set current ≥4 mA
● Increase the number of assigned
repetitions
Analog Output Module AQ 4xI HART HF
Manual, 05/2019, A5E35098013-AA