Siemens SIMATIC ET 200SP IM 155-6 DP HF - PWR LED on the interface module; LED DP on the RS485 interface; LED display of configuration errors

Interrupts, error messages, diagnostics and system alarms
5.1 Status and error displays
Interface module IM 155-6 DP HF (6ES7155-6BA01-0CN0)
Manual, 10/2018, A5E03916550-AD
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PWR LED on the interface module
Table 5- 2 Status display of the PWR LED
PWR LED
Meaning
Remedy
Off
No or too little supply voltage Check the supply voltage.
On
Supply voltage present -
LED DP on the RS485 interface
Table 5- 3 Status display of the DP LED
LED DP
Meaning
Remedy
Off
There is no connection between the PROFIBUS
interface of your PROFIBUS device and a commu-
nication partner (for example, DP master).
Check whether the bus cable to the DP master is
broken.
On
There is a connection between the PROFIBUS
interface of your PROFIBUS device and a commu-
nication partner (for example, DP master).
-
LED display of configuration errors
Configuration errors of the ET 200SP distributed I/O system are output on the interface
module by the ERROR (red) and MAINT (yellow) LEDs.
The following configuration errors are signaled by the LEDs:
● No server module
● Interruptions or short-circuit on the backplane bus