FP_COM_GET_STATUS

Read communication port status

This FP instruction gets the status of the communication port specified by s_Port of the CPU unit and stores the result in the DUT d_dutStatus.

Parameters

Input

s_Port (WORD, INT, UINT)

Specifies the communication ports depending on the PLC type:

COM port e.g. SYS_COM0_PORT
Ethernet port e.g. SYS_ETHERNET_USER_CONNECTION_1
MCU/SCU e.g. 16#xx01 (xx = slot number) in COM01

Output

d_dutStatus (FP_COM_STATUS_DUT): Stores the CPU/SCU/MCU status information in the FP_COM_STATUS_DUT

Error flags

sys_bIsOperationErrorHold (turns to TRUE and remains TRUE)

if the area specified using the index modifier exceeds the limit.

sys_bIsOperationErrorNonHold (turns to TRUE for one scan)

if the area specified using the index modifier exceeds the limit.

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
		bStart: BOOL:=FALSE;
		DUT_Status: FP_COM_STATUS_DUT;
	END_VAR

POU body

When the variable bStart changes from FALSE 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 := 5 ;
        NETWORK_BODY
B(B_VARIN,,0,7,3,9,5,);
B(B_VAROUT,,DUT_Status,21,3,23,5,);
B(B_CONTACT,,bStart,4,2,6,4,R);
B(B_F,FP_COM_GET_STATUS!,,9,1,21,5,,?DEN?Ds_Port?AENO?Cd_dutStatus);
L(1,3,4,3);
L(6,3,9,3);
L(1,0,1,5);
        END_NETWORK_BODY
    END_NET_WORK
END_BODY

ST body

IF DF(bStart) then
    FP_COM_GET_STATUS(s_Port :=0, d_dutScuStatus => DUT_SCUStatus);
END_IF;