Interrupts, diagnostics, error messages and system events
11.1 Status and error display of the CPU
CPU 1516pro-2 PN (6ES7516-2PN00-0AB0)
114 Operating Instructions, 09/2016, A5E35873416-AA
Status and error display of the CPU
LED display
The figure below shows the LED displays of the CPU 1516pro-2 PN.
RUN/STOP LED (yellow/green LED)
MAINTENANCE LED (yellow LED)
LINK RX/TX LED for port X1 P1 (yellow/green LED)
LINK RX/TX LED for port X1 P2 (yellow/green LED)
LINK RX/TX LED for port X2 P1 (yellow/green LED)
LINK LEDs for port X1 P3 (green LED, directly on the RJ45 socket, not labeled)
RX/TX LEDs for port X1 P3 (yellow LED, directly on the RJ45 socket, not labeled)
Figure 11-1 LED display of the CPU 1516pro-2 PN
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