DM2_Write (FB)¶

FUNCTION_BLOCK DM2_Write EXTENDS DM1_Write

This function block sends a DM1 messages from a given local ECU (itfSourceECU). A DM2 message contains lamp information and previously active diagnostic trouble codes (DTC). Following information is sent by this function block:

Lamp information for following lamps:
- Malfunction Indicator Lamp(MIL)
- Red Stop Lamp (RSL)
- Amber Warning Lamp (AWL)
- Protect Lamp
All enabled diagnostic trouble codes connected to output itfDTCProviderList (see DTCProvider function block).

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.	ETrig
Output	`xDone`	`BOOL`		`TRUE`: Action successfully completed	ETrig
	`xBusy`	`BOOL`		`TRUE`: Function block active	ETrig
	`xError`	`BOOL`		`TRUE`: Error occurred, function block aborts action `FALSE`: No error	ETrig
Input	`itfSourceECU`	`IJ1939LocalECU`		Local ECU which should be the sender of the diagnostic message.	DM1_Write
	`MalfunctionIndicatorLamp`	LAMP_INFO		Malfunction Indicator Lamp: Lamp to indicate when there is an emission related trouble code active.	DM1_Write
	`RedStopLamp`	LAMP_INFO		Red Stop Lamp: Lamp to indicate a problem that is severe enough to warrant stopping the vehicle.	DM1_Write
	`AmberWarningLamp`	LAMP_INFO		Amber Warning Lamp: Lamp to indicate a problem with the vehicle system but the vehicle does not need to be stopped immediately.	DM1_Write
	`ProtectLamp`	LAMP_INFO		Protect Lamp: Lamp to indicate a problem with a vehicle system that is most likely not electronic subsystem related (e.g. Coolant Temperature has exceeded its defined range.)	DM1_Write
Output	`itfDTCProviderList`	`IDTCProviderList`	THIS^	mainly for graphical programming: output for connection to DTC provider function blocks	DM1_Write
Output	`eError`	ERROR		detailed error information if xError is TRUE.	DM1_Write