Siemens SIMATIC ET 200AL System Manual page 357

Interrupts/diagnostics alarms
5.2 Interrupts
5.2 Interrupts
The DI 8x24VDC 8xM8 digital input module supports diagnostic interrupts.
Diagnostic interrupt
The digital input module generates a diagnostic interrupt at the following events:
• Short-circuit of encoder supply to ground
5.3 Diagnostics alarms
For each diagnostic event, a diagnostics alarm is issued and the DIAG LED flashes red on the
digital input module. You can read out the diagnostics alarms, for example, in the diagnostics
buffer of the CPU. You can evaluate the error codes with the user program.
Table 5- 3
Diagnostics
alarm
Short-circuit
20
Diagnostics alarms, their meanings and corrective measures
Error code Meaning
1 Short-circuit encoder supply to
H
ground
Remedy
Eliminate the short-circuit
DI 8x24VDC 8xM8 (6ES7141-5BF00-0BA0)
Equipment Manual, 08/2021, A5E32349579-AD