F149_MSG

Message display

This instruction is used for displaying the message on the FP Programmer II screen. After executing the F149_MSG instruction, you can see the message specified by s_Start on the FP Programmer II screen.

Parameters

Input

s_Start (STRING[12]): Message to be displayed

Remarks

When the F149_MSG instruction is executed, the message-flag R9026 is set and the message specified by s_Start is set in special data registers DT9030 to DT9035 (DT90030 to DT90035 for FP0 T32CP, FP2/2SH, FP10/10S/10SH). Once the message is set in special data registers, the message cannot be changed even if the F149_MSG instruction is executed again. You can clear the message with the FP Programmer II.

Example

POU header

All input and output variables used for programming this function have been declared in the POU header. The same POU header is used for all programming languages.

	VAR
		start: BOOL:=FALSE;
			(*activates the function*)
	END_VAR

POU body

When the variable start is set to TRUE, the function is carried out.

LD body

BODY
    WORKSPACE
        NETWORK_LIST_TYPE := NWTYPELD ;
        ACTIVE_NETWORK := 0 ;
    END_WORKSPACE
    NET_WORK
        NETWORK_TYPE := NWTYPELD ;
        NETWORK_LABEL :=  ;
        NETWORK_TITLE :=  ;
        NETWORK_HEIGHT := 6 ;
        NETWORK_BODY
B(B_VARIN,,'Hello~ world',8,3,10,5,);
B(B_CONTACT,,start,3,2,5,4,);
B(B_F,F149_MSG,,10,1,18,5,,?DEN?D@'s'?AENO);
L(1,0,1,6);
L(1,3,3,3);
L(5,3,10,3);
        END_NETWORK_BODY
    END_NET_WORK
END_BODY

ST body

IF start then
    F149_MSG('Hello, world');
END_IF;