Server (FB)

FUNCTION_BLOCK Server EXTENDS CBM.ETrigTo

The server is essential to send, receive and delete emails. The Server must be started before any action can be performed.

InOut:

Scope

Name

Type

Initial

Comment

Inherited from

Input

xExecute

BOOL
Rising edge: Action starts
Falling edge: Resets outputs
If a falling edge occurs before the function block has completed its action, the outputs operate in the usual manner and are only reset if either the action is completed or in the event of an error. In this case, the corresponding output values (xDone, xError) are present at the outputs for exactly one cycle.

ETrigTo

udiTimeOut

UDINT

Defines the time (µs) after which an FB (e.g. requiring an external acknowledgement) aborts operation due to a timeout with error message.

ETrigTo

Output

xDone

BOOL

TRUE: Action successfully completed

ETrigTo

xBusy

BOOL

TRUE: Function block active

ETrigTo

xError

BOOL
TRUE: Error occurred, function block aborts action
FALSE: No error

ETrigTo

Input

sPopServer

STRING

The name of the POP server.

uiPortPOP

UINT

110

The port of the POP server.

sSMTPServer

STRING

The name of the SMTP server.

uiPortSMTP

UINT

25

The port of the SMTP server.

eConnectionType

CONNECTION_TYPE

CONNECTION_TYPE.STD

Communication via TLS or standard, default: STD

xStartTLS

BOOL

Use STARTTLS for the SMTP connection (condition: eConnectionType = CONNECTION_TYPE.TLS)

itfTLSContext

NBS.ITLSContext

0

Encapsulates all the data neccecray to handle encrypted tcp connections

Static initialization, as shown in the following code snippet.

VAR
    commonName : STRING := 'MyRrasPi';
    ciCertInfo : NBS.CERT_INFO := (psInfo:=ADR(commonName), udiSize:=LEN(commonName));
    myTLSContext : NBS.TLSContext := (
        ePurpose:=NBS.PURPOSE.CLIENT_SIDE,
        sUseCaseName:='NBSTest',
        sTLSVersion:='1.3',
        ciCertInfo:=ciCertInfo,
        udiVerificationMode:=2
    );
END_VAR

itfAsyncProperty

NBS.IAsyncProperty

0

Runs the connect process in a own background task, usage see library Net Base Services

Output

eError

ERROR

Local library error ID (0: no error; 5001: time out)