Carry-flag set
The system variable sys_bIsCarry (carry-flag) goes ON if the trigger EN is in the ON-state. This instruction can be used to control data using carry-flag R9009 (e.g.F122_RCR and F123_RCL instructions).
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;
result after a leading edge
from start: carry-flag (R9009)
will be set ON*)
END_VAR
When the variable start is set to TRUE, the function is carried out.
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_CONTACT,,start,6,1,8,3,);
B(B_F,F140_STC,,10,0,18,3,,?DEN?AENO);
L(1,2,6,2);
L(8,2,10,2);
L(1,0,1,6);
END_NETWORK_BODY
END_NET_WORK
END_BODY
IF start then
F140_STC();
END_IF;