03/05 AWB2724-1453G
Demands placed on the func-
tionality of the transparent
mode
63
Table 14: Parameters of the “SysComOpen” function
“SysComClose” function
The function closes any RS232 interface opened in transparent
mode. The communication parameters which were set last are
restored during closing. The function provides TRUE as a return
value if the action is completed successfully.
Table 15: Parameters of the “SysComClose” function
Figure 89: “SysComOpen” function
Port Interface selection
Parameters: Specified for the open interface.
SysComOpen
Return value 0:
Return value > 0:
Opening of the RS232 interface was not successful.
Opening of the RS232 interface was successful.
Figure 90: SysComClose function
dwHandle
Return value of the “SysComOpen” function
SysComClose Return value TRUE: closing the RS232 interface was successful
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