S5 to S7: CPU 115 Memory E42C. What is it?

Dear All,

In S5 I have following code, trying to understand to use SFC20 but I stuct what is E42C memory location for CPU942 (/CPU115U). I have translated this fro one of post by Fritz.


C db22
L KH E42C
LIR 0 //I got it's loading the Memory address in E42C (may beDB no, but not sure which DB no)
ADD BN +57 // adding DN.No+57???
T DW 0
L KH EEFF //Destination End Address (I got this is F area =FY255)
LDW 0// I don't what is inside this???
TNB 56 //Transfer 56 bytes, right? From FY 255 downwad 56 bytes to some DB??


JU FB23// SCAN BLOCK--- No Problem here

C DB22
L DW 0/// Again I need to know this???
L KH EEFF // This FY 255
TNB 56 // Reverse transfer of above


Can any one help?


S7 Converted Text as below:

OPN "DB Flags saving" // | Read starting address
L W#16#E42C // | of DB22
// LIR 0; // | NB! E42Ch = Addr (DB22)
// *** Error in Line 1668 (FB 22): Command not defined. ***
+ 57 // | Calculate final address
T DBW 0 // | of block
L W#16#EEFF // | Save MB200-MB255 -> DB22
L DBW 0
//CALL SFC 20 (
// SRCBLK := P#????? BYTE 56 ,
// RET_VAL := conv_ret_val,
// DSTBLK := P#????? BYTE 56
// );
// *** Error in Line 1678 (FB 22): CALL SFC20 generated. Please complete parameter list. ***

//;
CALL "FB Scale regulator"
//;
OPN "DB Flags saving" // DB Save
L DBW 0 // | Restore DB22 -> MB200-MB255
L W#16#EEFF
//CALL SFC 20 (
// SRCBLK := P#????? BYTE 56 ,
// RET_VAL := conv_ret_val,
// DSTBLK := P#????? BYTE 56
// );
// *** Error in Line 1691 (FB 22): CALL SFC20 generated. Please complete parameter list. ***