Interrupts; Hardware Interrupts - Siemens Simatic ET 200SP Manual

Interrupts/diagnostic alarms

14.2 Interrupts

PWR LED
Table 14- 4
14.2 Interrupts
The analog input module AI Energy Meter HF supports hardware and diagnostic interrupts.
14.2.1

Hardware interrupts

Hardware interrupts
The module generates a hardware interrupt at the following events:
● Violation of low limit 1 to 16
● Violation of high limit 1 to 16
You can find detailed information on the event in the hardware interrupt organization block
with the "RALARM" (read additional interrupt information) instruction and in the STEP 7
online help.
The module channel that triggered the hardware interrupt is entered in the start information
of the organization block. The following figure shows the assignment of the local data double
word 8 by the start information of the hardware interrupt organization block.
Figure 14-2
110
Meaning of the PWR LED
PWR Meaning
Line voltage missing
Off
Line voltage available
On
Start information of the organization block
Analog input module AI Energy Meter 480VAC/CT HF (6ES7134-6PA00-0CU0)
Manual, 07/2018, A5E42674880-AA