Siemens Simatic S7-1500

5.1.4 ACT LED and interface LEDs
Meaning of ACT LED
The ACT LED is located next to the memory card slot and indicates write/read accesses to the
SIMATIC memory card.
Table 5-4ACT LED
ACT LED Meaning
LED off
No access to the SIMATIC memory card
LED flickers yel
low
Access to the SIMATIC memory card
If you remove the SIMATIC memory card during a write operation, the following problems
may occur:
•
The data content of a file is incomplete.
•
The file is no longer readable or no longer exists.
•
The entire data content is corrupted.
Regarding the removal of the SIMATIC memory card, note also the following FAQ on the
Internet (https://support.industry.siemens.com/cs/ww/en/view/59457183).
Meaning of the LEDs of the PROFINET interface X130, X150, X160
For diagnostic purposes, each of the RJ45 sockets is equipped with a LINK LED and and
ACTIVITY LED. The LEDs are used to display the following status information of the respective
PROFINET interface.
Table 5-5LEDs of PROFINET interface X130, X150, X160
RJ45 socket LINK LED ACTIVITY LED Meaning
LED off LED off
There is no communication connection
between the PROFINET interface of the SIMAT
IC Drive Controller and the communication
partner. No data is currently being
sent/received via the PROFINET interface.
There is no LINK connection.
LED flashes green
– The "LED flashing test" is being performed.
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LED lit green
– A 10/100Mbps communication connection
exists between the PROFINET interface of the
SIMATIC Drive Controller and a communication
partner.
62
SIMATIC Drive Controller
Equipment Manual, 11/2022, A5E46600370-AC
Interrupts, diagnostics alarms, error messages and system alarms
5.1 Status and error displays