PROFIBUS ABB AC500 Master with AC500 Slave... HELP!!

Hi...

I'm trying to make a PROFIBUS-DP net with 3 devices:
- 1 ABB AC500 with PM571 CPU and coupler DX531 and coupler MASTER CM572.
- 1 ABB AC500 with PM571 CPU and coupler DX531 (for use as SLAVE)
- 1 ABB UMC22

I haven't problems to connect both ABB AC500, I think that I have a problem with the address but I viewed in Sycon.net and CodeSys and both address and this are the same





In the diagnostic of CM572 in Sycon.net, this say that Slave not detected. In led status in slave PDP22 FBP, PROFIBUS State red led is flashing and both led green are on.

I hope that somebody can help me...

Thanks...

Best regards.