Interrupts; Diagnostics Alarms - Siemens SIMATIC ET 200SP Manual

Interrupts/diagnostics alarms

5.2 Interrupts

5.2 Interrupts
The analog input module AI 8×U BA supports diagnostics interrupts.
Diagnostic interrupt
The module generates a diagnostic interrupt at the following events:
● Channel temporarily unavailable
● Low limit violated
● High limit violated
● Error
● Parameter assignment error
● No load voltage
5.3

Diagnostics alarms

A diagnostics alarm is output for each diagnostics event and the DIAG LED flashes on the
module. 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 meanings and corrective measures
Diagnostics alarm
High limit violated
Low limit violated
Error
Parameter assignment
error
No load voltage
Channel temporarily
unavailable
20
Error code Meaning
7 Value is above overrange.
H
8 Value is below underrange.
H
9 Internal module error occurred.
H
10
The module cannot evaluate parame-
•
H
ters for the channel.
Incorrect parameter assignment.
•
11 No or insufficient supply voltage L+
H
1F Firmware update in progress or update has
H
been canceled.
The module does not read any process
values in this state.
Solution
Correct interplay between module and
encoder
Correct interplay between module and
encoder
Replace module
Correct the parameter assignment
Check supply voltage L+ on the
•
BaseUnit
Check BaseUnit type
•
Wait for firmware update
•
Restart the firmware update
•
Analog input module AI 8xU BA (6ES7134-6FF00-0AA1)
Manual, 03/2015, A5E34941660-AA