via the flags area:

MB508: 

        Bit 0   Offline/Passive-Idle 

               0 = SPC3 is offline 

               1 = SPC3 is passive-Idle 

                  Bit1 reserved 

                       Bit2 Diag_Flag 

                       0 = DP-Master read Diag. buffer 

                       1 = DP-Master read not Diag. buffer 

        Bit3 RAM_Access_Violation 

                       0 = No Adress Err. 

                       1 = For adresses > 1536 Byte will be 1024 Byte 

        Bit4,5 DP State 

                       00 = Wait_Prm 

                       01 = Wait_Cfg 

                       10 = DATA_EX 

                       11 = not possible 

        Bit6,7 WD State 

                       00 = Baud_Search 

                       01 = Baud_Control 

                       10 = DP_Control 

                       11 = not possible 

MB509:

        Bit0,1  Baudrate3..0

        Bit2,3         0000 = 12 MBaud ( SPC3 found Baudrate) 

                       0001 = 6 MBaud 

                       0010 = 3 MBaud 

                       0011 = 1,5 MBaud 

                       0100 = 500 KBaud 

                       0101 = 187,5 KBaud 

                       0110 = 93,75 KBaud 

                       0111 = 45,45 KBaud 

                       1000 = 19,2 KBaud 

                       1001 = 9,6 KBaud 

        Bit 4          SPC3_Release3..0: 

        5,6            Release_Nr.des SPC3 

        7              0000 = Release 0 

                       rest = not possible 

MB510:

Klemmenbus-State: 

Bit0                   0 = no Klemmbus Err. 

                       1 = Klemmbus Err. 

Bit1                   0 = no boot Err. 

                       1 = boot Err.

余洋 2023.3.8 编辑