Processor
module
LED State Color LED = ON LED = OFF
PM5072-
T-2ETHW
O0..O7 Transistor
output
Yellow Output is ON Output is OFF
C12, C13 Digital configu-
rable input/
output
Yellow Input/Output
is ON
Input/Output is
OFF
Table 8: State LEDs at Ethernet connector
LED Color OFF ON Flashing
Activity Yellow No activity --- Activity
Link Green No link Link ---
1.3.1.1.6 Diagnosis
The AC500 processor module can display various errors according to the error classes. The
following error classes are possible. The reaction of the processor module is different for each
type of error.
Error class Type Description Example
E1
ERR-LED is ON
Fatal error A safe function of the operating
system is no longer guaranteed.
Checksum error in the system
Flash or RAM error
E2
ERR-LED is ON
Severe error The operating system is func-
tioning without problems, but the
error-free processing of the user
program is no longer guaranteed.
Checksum error in the user
Flash, independent of the task
duration
E3
ERR-LED is ON/OFF
*)
Light error It depends on the application
if the user program should be
stopped by the operating system
or not. The user should deter-
mine which reaction is necessary.
Flash could not be pro-
grammed, I/O module has
failed
E4
ERR-LED is ON/OFF
*)
Warning Error in the periphery (e.g. I/O)
which may show an impact in
the future. The user should deter-
mine which reaction is necessary.
Short-circuit at an I/O module,
the battery is run down or not
inserted
*) The behaviour if the ERR-LED lights up at error classes E3 or E4 is configurable.
Occurred errors can be displayed with the commands diagshow all in the PLC-Browser of
Automation Builder software.
1.3.1.1.7 Onboard I/Os
The AC500-eCo V3 processor modules have onboard I/Os which provide several functionalities.
According to the CPU type, the number or the functionality of the onboard I/Os can be different.
Ethernet state
LEDs
Processor modules > AC500-eCo
2022/01/31 3ADR010278, 3, en_US 23
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