Description

Function description

The D_DYN function block is used for dynamic Diagnostics.

For certain processes it is necessary to combine D_LOCK (Extended locking diagnostics), D_ACT (Extended action diagnostics) and D_REA (Extended reaction diagnostics) in one unit, which monitors the current state of the diagnostics. This is only possible using a special function block, which internally manages the current diagnostics status.

To prevent this function block from becoming too complex, only one ED enable signal and one ERR error output have been defined.

Monitoring is carried out cyclically. The activation of the diagnostics, and thereby the distribution of the cycle load, can be achieved through the enable signal ED.

NOTE: Do not use diagnostic EFBs in DFBs.

and can be configured as additional parameters.

Representation in FBD

Representation:

Representation in LD

Representation:

Representation in IL

Representation:

CAL D_DYN_Instance (ED:=EnableDiagnosis,
    DTIMEL:=ToleranceTimeLock,
    DTIMEA:=ToleranceTimeAction,
    DTIMER:=ToleranceTimeReaction,
    TRIGR:=TriggerSignal, UNLOCK:=Locking,
    REACT:=ReactionInput, SWITCH:=M_I_Switch,
    STOP:=StopSignal, ERR=>ErrorFlag,
    ACT=>ActionEnabled)

Representation in ST

Representation:

D_DYN_Instance (ED:=EnableDiagnosis,
    DTIMEL:=ToleranceTimeLock,
    DTIMEA:=ToleranceTimeAction,
    DTIMER:=ToleranceTimeReaction,
    TRIGR:=TriggerSignal, UNLOCK:=Locking,
    REACT:=ReactionInput, SWITCH:=M_I_Switch,
    STOP:=StopSignal, ERR=>ErrorFlag,
    ACT=>ActionEnabled) ;

Description of parameters

Description of the input parameters:

Parameter	Data type	Meaning
ED	BOOL	Enable diagnostics
DTIMEL	TIME	Tolerance time D_LOCK (locking diagnostics)
DTIMEA	TIME	Tolerance time D_ACT (action diagnostics)
DTIMER	TIME	Tolerance time D_REA (reaction diagnostics)
TRIGR	BOOL	Trigger
UNLOCK	BOOL	Lock
REACT	BOOL	Reaction signal
SWITCH	BOOL	M/I switch; 0: M behavior, 1: I behavior, 0/1: MI behavior
STOP	BOOL	Stop signal

Description of the output parameters:

Parameter	Data type	Meaning
ERR	BOOL	Error message; 0: No error; 1: Error
ACT	BOOL	Action enabling

Public variables

Description of the public variables:

Parameter	Data type	Meaning
AREA_NR	BYTE	Automation area to be monitored. This byte specifies which area will be monitored by the diagnostic EFB. It is advisable to assign the numbers according to the functional modules. Values: 0 ... 15. The standard value is 0. Example: Cutting: No. 1 Milling: No. 2 Thread cutting: No. 3 In the example AREA_NR must have the value 1, 2 or 3, so that they can recognize the error affected area.
OP_CTRL	BOOL	This bit specifies whether a diagnostic event will request a user acknowledgement. 0: no user acknowledgement required 1: user acknowledgement required The standard value is 0.