IM 155-5 PN HF Interface Module (6ES7155-5AA00-0AC0)
36 Manual, 10/2018, A5E32840985-AB
Interrupts and diagnostic, error, and system alarms
Status and error displays
Introduction
Diagnostics by means of LED display is an initial tool for error localization. To narrow down
the error, you usually evaluate the display of the CPU, the display of the module status in
STEP 7 or the diagnostics buffer of the CPU. The buffer contains plain text information on
the error that has occurred. For example, you will find the number of the appropriate error
OB there.
The figure below shows the LED display on the IM 155-5 PN HF interface module.
P1 LINK/TX/RX (green/yellow)
P2 LINK/TX/RX (green/yellow)
Figure 5-1 LED display on the interface module
To Next Page
Loading...
