Hello there, 

I am having techincal issues with communication between PLC and remote IO units via profinet.  In the project I have 3x Scalance XB205 which are connected into optical ring. Each Scalance has ethernet connection to PLC (S1500) or remote IO unit (IM 155-5 PN ST). 

I have assigned each device an IP, Name, created network and topology. 

After downloading hardware configuration, in diagnostic buffer I have:

IO device deactivated (configured initial state - Event id: 16# 02:0444)

Ping is OK on all devices.

I cannot find any topics related or help inside TIA portal.

I am using TIA portal v13, step 7 SP1 update 9

Hello. 

In the online, all devices are set to be deactivated

I have. First thing I've done was setting up IP on each device and assign-ed it name. As I enter online it says for all devices except PLC itself that are deactivated. 

In diagnostic buffer I get (As I have written in original post): 

IO device deactivated (configured initial state - Event id: 16# 02:0444)

The same thing appears even with PLC SIM

Hi, Had the same problem, If you have something with "Prioritized Startup", until you see it on the network, the others io systems will not start to recive or send, you need to uncheck it.

Hello everyone,

I also have the same message but non of the above solutions works for me. I have a CPU1512SP F 1-PN connected to the Universal robot. Is there any other ideas? Is there something related to cycle time and functions for transferring data on the Robot side?

Nasal

Hello everyone,

I also have the same message but non of the above solutions works for me. I have a CPU1512SP F 1-PN connected to the Universal robot. Is there any other ideas? Is there something related to cycle time and functions for transferring data on the Robot side?

 Have you tried making the Profinet update time of that connection longer? Sometimes the stanard 2ms update time is too quick.