Detailed Description 
  2.1 Various interface signals and functions (A2) 
NC/PLC Interface Signals (Z1) 
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0 
2-21 
DB19 
DBX24.6 
 
RS-232-C off (status RS-232-C from PLC) 
Edge evaluation: no  Signal(s) updated: cyclic 
Signal state 1 or 
edge change 0 → 1 
RS-232-C off active 
Signal state 0 or 
edge change 1 → 0 
RS-232-C off inactive 
Application 
example(s) 
The actual status of the RS 232C is sent to the PLC in acknowledgment byte DB19.DBB24. 
Corresponding to ....  Applies to HMI Embedded 
 
 
DB19 
DBX24.7 
 
RS-232-C on (status RS-232-C from PLC) 
Edge evaluation: no  Signal(s) updated: cyclic 
Signal state 1 or 
edge change 0 → 1 
RS232C on active 
Signal state 0 or 
edge change 1 → 0 
RS232C on inactive 
Application 
example(s) 
The actual status of the RS 232C is sent to the PLC in acknowledgment byte DB19.DBB24. 
Corresponding to ....  Applies to HMI Embedded 
 
 
DB19 
DBX25.0 - DBX25.7 
 
Error RS-232-C 
Edge evaluation: no  Signal(s) updated: cyclic 
Description  0 = no error 
1 = invalid number for the control file  
 (value in DB19.DBB14<127 or invalid) 
2 = DB19.DBB15 could not be read 
3 = control file /BD.DIR/PLC_IN_OUT_xxx.TEA not found 
 (value in DB19.DBB14 invalid) 
4 = invalid index in control file. 
 (value in DB19.DBB15 incorrect) 
5 = selected job list in the control file could not be opened (only HMI Advanced) 
6 = error in the job list (job list interpreter returns error) (only HMI Advanced) 
7 = job list interpreter signals empty job list (only HMI Advanced) 
8 = error during the RS-232-C transmission 
 The error text is entered into the DIENSTE PROTOKOLL [SERVICES REPORT]. 
9 = error when executing job list (only HMI Advanced)