FB_DBConnectionClose
You can close connections to databases with this function block FB_DBConnectionOpen. If you have opened a connection to a database before, it is important to close this connection after using.
VAR_INPUT
VAR_INPUT
sNetID : T_AmsNetId;
hDBID : DINT;
bExecute : BOOL;
tTimeout : TIME;
END_VAR
sNetID : Is a string containing the AMS network identifier of the target device to which the ADS command is directed.
hDBID : Indicates the ID of the database to be used.
bExecute : The command is executed with the rising edge.
tTimeout : States the time before the function is cancelled.
VAR_OUTPUT
VAR_OUTPUT
bBusy : BOOL;
bError : BOOL;
nErrID : UDINT;
END_VAR
bBusy : The command is in the process of being transmitted by ADS. No new command will be accepted as long as "bBusy" remains TRUE.
bError : Becomes TRUE, as soon as an error occurs.
nErrID : Supplies the ADS Error Code when the bError output is set.
Requirements
Development environment | Target system type | PLC libraries to be linked |
---|---|---|
TwinCAT v2.10.0 | PC oder CX (x86) | TcDatabase.Lib |
TwinCAT v2.10.0 | CX (ARM) |