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
Device specifications
Processor modules > AC500-eCo
2022/01/31
3ADR010278, 3, en_US
23
