F145_SEND

Send data (MEWNET link)

This instruction sends data to another station through link modules in the network.

Parameters

Input

s1_Control (DWORD): 32-bit area for storing control data
s2_Start (WORD, INT, UINT): Starting 16-bit area for storing source data (data area at the source station)
d_AdrType (WORD, INT, UINT): Type of destination operands for storing data in the target station. Be sure to select the area by setting the address 0 (e.g. DT0 or WR0, ...) (data area at the target station)
d_AdrOffs (WORD, INT, UINT): Starting 16-bit area address for the destination operand specified in d_AdrType (data area at the target station), must be a constant

The variables s2_Start, d_AdrType and d_AdrOffs have to be of the same data type.

Remarks

Specifications of s1_Control:

s1 higher byte	s1 lower byte

1. Link No. selection (LK: 1–3, the station itself)	1. Word unit send selection
Up to 3 link units can be connected to 1 CPU.	F = 0	Word unit selection
Up to 3 link units can be connected to 1 CPU.	n2 = 0	Set "0" when the word unit is selected
This (LK) selects the source link unit of the three.	n1 = 11–16	Specify the number of words to be sent
2. Link station No. selection (UN: 1–63, another station)	2. Bit unit send selection
Up to 63 stations can be connected to 1 link unit.	F = 1	Bit unit selection
This (UN) then selects the target station No.	n2 = 0–15	Destination bit No.
This (UN) then selects the target station No.	n1 = 0–15	Source bit No.

Tip

For detailed information, please refer to the relevant technical manual of the intelligent unit.

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*)
		specify_value: DWORD:=0;
			(*stores the control data*)
		send_address: WORD:=0;
			(*Starting 16-bit area for
storing source data*)
		dest_address: WORD:=0;
			(*Type of destination
operands for storing data
in the destination station*)
		n: INT:=0;
	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 := 7 ;
        NETWORK_BODY
B(B_CONTACT,,start,3,1,5,3,);
B(B_F,F145_SEND!,Instance,9,0,17,7,,?DEN?Ds1_Control?Ds2_Start?Dd_AdrType?Dd_AdrOffs?AENO);
B(B_VARIN,,specify_value,7,2,9,4,);
B(B_VARIN,,send_address,7,3,9,5,);
B(B_VARIN,,dest_address,7,4,9,6,);
B(B_VARIN,,5,7,5,9,7,);
L(1,2,3,2);
L(5,2,9,2);
L(1,0,1,7);
        END_NETWORK_BODY
    END_NET_WORK
END_BODY

ST body

IF start then
    F145_SEND( specify_value, send_address, dest_address, 5);
END_IF;