Communication problem when replacing sinamics g120 CU 240s-dp with cu240e-2dp one

hi everybody

i have profibus DP communication problem when i replace sinamics g120 CU 240s-dp with cu240e-2dp one.

i have replaced the cu in hardware configuration for CPU 417-5 H PN/DP_1

then i used the same telegram 352 which has used with CU 240s-dp and downloaded in plc

but here LED indications in cu240e-2dp

RDY                  |             BF             |

---------------------|--------------------------|

green on/off      |          red flashing   |

and there is Alarm A1920 in diagnostic 

however when i open HW Config in simatic manager online , there is no any fault on cu240e-2dp icon on the bus

could anyone help me in this problem?

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Split from enable and disable the Profibus slave communication by program for DP master?.

Closed cause question posted twice.

The second thread with the subject replace cu 240s-dp with cu240e-2dp is published within the conference Decentral Peripherie.

Best regards
Jen_Moderator