Diagnostics Alarms - Siemens SIMATIC ET 200SP Manual

Interrupts/diagnostics alarms

5.3 Diagnostics alarms

5.3 Diagnostics alarms
A diagnostics alarm is output for each diagnostics event and the DIAG LED on the module
flashes. The diagnostics alarms can, for example, be read from the diagnostics buffer of the
CPU. You can evaluate the error codes with the user program.
Table 5- 4 Diagnostics alarms, their meaning and how to deal with them
Diagnostics alarm Error code
Channel temporarily 1F
unavailable
Short-circuit 1
H
Overtemperature 4
H
Wire break 6
H
High limit violated 7
H
Low limit violated 8
H
Error 9
H
Parameter assign- 10
ment error
No load voltage 11
24
Meaning
Firmware being updated. The module is cur-
H
rently not performing any outputs.
The channel is currently being calibrated.
Short-circuit of the actuator supply
Thermal overload of the I/O module
Actuator circuit impedance too high.
Wire break between the module and actuator
Channel not connected (open)
The output value specified by the user pro-
gram exceeds the overrange.
The output value specified by the user pro-
gram is below the underrange.
Internal module error occurred.
The module cannot evaluate parameters
•
H
for the channel.
Incorrect parameter assignment.
•
No or insufficient supply voltage L+
H
Remedy
–
Correct the process wiring
Correct the process wiring
Use a different actuator type or wire
differently, e.g. use cables with a
larger cross-section
Connect the cable
Disable the channel ("output
•
type" parameter)
Connect the channel
•
Correct the output value
Correct the output value
Replace module
Correct the parameter assignment
Check supply voltage L+ on the
•
BaseUnit
Check BaseUnit type
•
Analog Output Module AQ 4xU/I ST (6ES7135-6HD00-0BA1)
Manual, 03/2016, A5E03573365-AD