Interrupts - Siemens SIMATIC ET 200MP User Manual

Interrupts and diagnostic, error, and system alarms

5.2 Interrupts

Meaning of the LEDs P1 LINK/TX/RX, P2 LINK/TX/RX
Table 5- 2 Meaning of the LEDs P1 LINK/TX/RX, P2 LINK/TX/RX
LEDs
P1 LINK/TX/RX,
P2 LINK/TX/RX
There is no Ethernet connection between the
PROFINET interface of your PROFINET device
Off
and a communication partner (e.g. IO controller).
There is an Ethernet connection between the
PROFINET interface of your PROFINET device
On
and a communication partner (e.g., IO controller).
There is active data traffic (sending/receiving) via
the Ethernet connection.
Flickers
"Node flash test" is being performed. (The LEDs
RUN/ ERROR/ MAINT are also flashing.)
Flashes
5.2 Interrupts
Introduction
The I/O device generates interrupts as a reaction to specific error events. Interrupts are
evaluated based on the I/O controller used.
Evaluating interrupts with I/O controllers
The ET 200MP distributed I/O system supports the following interrupts:
● Diagnostic interrupts
● Hardware interrupts
In the event of an interrupt, interrupt OBs are automatically called in the CPU of the IO
controller.
Information on the cause and class of the error is already available, based on the OB
number and start information.
Detailed information on the error event can be obtained in the error OB using the instruction
"RALRM" (read additional interrupt information).
38
Meaning Remedy
Check whether the bus cable to the switch/IO
controller is interrupted.
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IM 155-5 PN HF Interface Module (6ES7155-5AA00-0AC0)
Manual, 10/2018, A5E32840985-AB