Hi

contact your local siemens Partner. These devices are quite old and perhaps they Support IEC-103 protocol

thanim

we have in our plant Siemens protection  relays attache type of all relays, now we plan to replace the SACDA system (SAS) the existing system was ABB Series 200 platform 

please let me know the important specification that need comply with Siemens protection relay hence, the below SACDA system that may be we will select it 

1- GE 650 Controller

2-  GE D20/ 200

3- Schneider Modicon  M580 

􏲵􏲺􏲻4- ABB  Controller AC 800M

Thank you