Baer DLX User Manual page 113

1 SCTM Protocol ................................................................................................................... 5
1.1 Device status in the registration period data block .............................................................. 5
1.2 Register status in the registration period data block ............................................................ 7
1.3 Retrieval of events (spontaneous event buffer : 051-xx) ..................................................... 7
1.4 List of addresses for SCTM ................................................................................................. 8
1.5 SCTM telegrams (subset) .................................................................................................. 34
1.6 Changing between summertime and wintertime................................................................ 35
1.6.1 Switching from wintertime to summertime ......................................................................... 35
1.6.2 Switching from summertime to wintertime ......................................................................... 35
2 IEC 60870-5-102 Protocol ................................................................................................ 36
2.1 Telegram processing ......................................................................................................... 36
2.2 Date retrieval (Periodic buffers Tm1/MP1 & Tm2/MP2) .................................................... 36
2.3 Retrieval of messages (spontaneous event buffer) ........................................................... 37
2.4 Compatibility list ................................................................................................................. 37
2.4.1 Network configuration ........................................................................................................ 37
2.4.2 Transmission speed (control and monitoring direction) ..................................................... 37
2.4.3 Link address (address field of the link layer) ..................................................................... 38
2.4.4 Transmission mode for application data ............................................................................ 38
2.4.5 ASDU address ................................................................................................................... 38
2.4.6 Signature............................................................................................................................ 38
2.4.7 List address (list number) .................................................................................................. 38
2.4.8 Rate information (programmable) ...................................................................................... 38
2.4.9 Selection of standardized ASDU........................................................................................ 39
2.4.10 System information in control direction: request (from the central unit to the DLX) .......... 40
2.4.11 Basic application functions ................................................................................................ 41
3 Modbus RTU Protocol ..................................................................................................... 42
3.1 Telegram processing ......................................................................................................... 42
3.2 Telegram structure ............................................................................................................. 42
3.3 Modbus register addresses ............................................................................................... 43
Index
A 3