FB_NLinkClose

VAR_IN_OUT

VAR_IN_OUT
    hLink : T_HNLINK;
END_VAR
 

hLink : Network connection handle ( Type:T_HNLINK). This is where the instance of the variable used for establishing the connection by the FB_NLinkOpen function block is transferred.

VAR_INPUT

VAR_INPUT
    nOpt     : DWORD := 0;
    bExecute : BOOL;
    tTimeout : TIME := DEFAULT_ADS_TIMEOUT;
END_VAR

nOpt: Reserved for future applications.

bExecute: The block is activated by a rising edge at this input.

tTimeout: Specifies the timeout that must not be exceeded on receipt of the command.

VAR_OUTPUT

VAR_OUTPUT
    bBusy : BOOL;
    bError : BOOL;
    nErrID : UDINT;
END_VAR
 

bBusy: When the function block is activated this output is set. It remains set until a feedback is received. While Busy = TRUE, no new command will be accepted at the inputs. Please note that it is not the command execution but the receipt of the command that is monitored.

bError: In the event of an error during the command transfer, this output is set once the bBusy output has been reset.

nErrID: Supplies the error number when the bError output is set.

Example:

See examples.

Requirements