Siemens Simatic S7-1500 Uitrustingshandleiding - Pagina 36

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Siemens Simatic S7-1500 Uitrustingshandleiding
Interrupts, error messages, diagnostics and system alarms
5.1 Status and error display of the CPU
Meaning of LINK RX/TX LED
Each port has a LINK RX/TX LED. The table below shows the various "LED scenarios" of ports
for the CPU 1516T‑3 PN/DP.
Table 5-2  Meaning of the LED
LINK TX/RX LED
LED off
LED flashes green
LED lit green
LED flashes
yellow/green
NOTE
"LED" instruction
You can read the status (e.g. "On" or "Off") of LEDs of a CPU or a module using the "LED"
instruction. Note, however, that it is not possible to read the LED status of the LINK RX/TX
LEDs on all S7-1500 CPUs.
You can find additional information on the "LED" instruction in the STEP 7 online help.
36
There is no Ethernet connection between the PROFINET interface of the PROFINET device and
the communication partner.
No data is currently being sent/received via the PROFINET interface.
There is no LINK connection.
The "LED flashing test" is being performed.
There is an Ethernet connection between the PROFINET interface of your PROFINET device and
a communication partner.
Data is currently being received from or sent to a communications partner on Ethernet via the
PROFINET interface of the PROFINET device.
Meaning
CPU 1516T-3 PN/DP (6ES7516-3TN00-0AB0)
Equipment Manual, 11/2022, A5E40898375-AC