FP_IPV4_GET_CONNECTION

获取连接参数

此FP指令将从以太网连接读取参数并将值写入DUT FP_IPv4_CONNECTION_DUT。

参数

输入

nPort (WORD, INT, UINT): CPU上的以太网端口（FP7 E类型）：SYS_ETHERNET_USER_CONNECTION_1–SYS_ETHERNET_USER_CONNECTION_216

输出

dutIPv4Connection (FP_IPv4_CONNECTION_DUT): 以太网连接的参数

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
		bSetIpv4Address: BOOL:=FALSE;
		bGetConnection: BOOL:=FALSE;
		bGetMac: BOOL:=FALSE;
		dutIPv4Connection: FP_IPv4_CONNECTION_DUT;
		dutIPv4MAC: FP_IPv4_MAC_DUT;
	END_VAR

POU body

This example sets the Ethernet connection parameters specified by s_Address. Please ensure the suitable parameters are also set in the project navigator under [System registers] > [Ethernet] > [User connections]. When bGetConnection is set to TRUE, the connection parameters are entered into the DUT FP_IPv4_CONNECTION_DUT.When bGetMac is set to TRUE, the parameters of the MAC address are entered into the DUT FP_IPv4_MAC_DUT.

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,,'IP=192.168.1.5~MASK=255.255.255.0~GWIP=192.168.1.1',29,3,31,5,);
B(B_CONTACT,,bSetIpv4Address,4,2,6,4,R);
B(B_CONTACT,,sys_bIsEthernetInitializing,15,2,17,4,);
B(B_VAROUT,,bError,43,3,45,5,);
B(B_F,FP_IPV4_SET_ADDRESS!,,31,1,43,5,,?DEN?DsAddress?AENO?CbError);
L(1,3,4,3);
L(6,3,15,3);
L(17,3,31,3);
L(1,0,1,5);
        END_NETWORK_BODY
    END_NET_WORK
    NET_WORK
        NETWORK_TYPE := NWTYPELD ;
        NETWORK_LABEL :=  ;
        NETWORK_TITLE :=  ;
        NETWORK_HEIGHT := 6 ;
        NETWORK_BODY
B(B_VAROUT,,dutIPv4Connection,45,3,47,5,);
B(B_CONTACT,,bGetConnection,4,2,6,4,);
B(B_F,FP_IPV4_GET_CONNECTION!,,31,1,45,5,,?DEN?DnPort?AENO?CdutIPv4Connection);
B(B_VARIN,,SYS_ETHERNET_USER_CONNECTION_2,29,3,31,5,);
B(B_CONTACT,,sys_bIsEthernetIPAddressAssigned,15,2,17,4,);
L(6,3,15,3);
L(17,3,31,3);
L(1,3,4,3);
L(1,0,1,6);
        END_NETWORK_BODY
    END_NET_WORK
    NET_WORK
        NETWORK_TYPE := NWTYPELD ;
        NETWORK_LABEL :=  ;
        NETWORK_TITLE :=  ;
        NETWORK_HEIGHT := 4 ;
        NETWORK_BODY
B(B_CONTACT,,bGetMac,4,1,6,3,);
B(B_F,FP_IPV4_GET_MAC!,,31,0,41,4,,?DEN?AENO?CdutIPv4MAC);
B(B_VAROUT,,dutIPv4MAC,41,2,43,4,);
L(1,2,4,2);
L(6,2,31,2);
L(1,0,1,4);
        END_NETWORK_BODY
    END_NET_WORK
END_BODY

ST body

IF DF(bSetIpv4Address) AND sys_bIsEthernetInitializing then
    FP_IPV4_SET_ADDRESS(sAddress := 'IP=192.168.1.5,MASK=255.255.255.0,GWIP=192.168.1.1',
				bError => bError);
END_IF;
IF (bGetConnection) then
    FP_IPV4_GET_CONNECTION(nPort := SYS_ETHERNET_USER_CONNECTION_2, dutIPv4Connection => dutIPv4Connection);
END_IF;
IF (bGetMac) then
    FP_IPV4_GET_MAC(dutIPv4MAC => dutIPv4MAC);
END_IF;